Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

JEE: Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

The document Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE is a part of the JEE Course I. E. Irodov Solutions for Physics Class 11 & Class 12.
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Q.21. A pendulum clock is mounted in an elevator car which starts going up with a constant acceleration w, with w < g. At a height h the acceleration of the car reverses, its magnitude remaining constant. How soon after the start of the motion will the clock show the right time again? 

Ans. Let the downward acceleration of the elevator car has continued for time t then the sought time

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE is the time of upward acceleration of the elevator.
One should i/ote that if the point of suspension of a mathematical pendulum moves with an acceleration Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE then the time period of the pendulum becomes

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE ( see 4.30)

In this problem the time period of the pendulum while it is moving upward with acceleration w becomes

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEEand its time period while the elevator moves downward with the same magnitude of acceleration becomes

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

As the time of upward acceleration equals  Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE, the total number of oscillations during this time equals

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Thus the indicated time Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Similarly the indicated time for the time interval t '

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

we demand that

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the sought time

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.22. Calculate the period of small oscillations of a hydrometer (Fig. 4.2) which was slightly pushed down in the vertical direction. The mass of the hydrometer is m = 50 g, the radius of its tube is r = 3.2 mm, the density of the liquid is ρ = 1.00 g/cm3. The resistance of the liquid is assumed to be negligible. 

Ans. If the hydromoter were in equlibrium or floating, its weight will be balanced by the buoyancy force acting on it by the fluid. During its small oscillation, let us locate the hydrometer when it is at a vertically downward distance x from its equilibrium position. Obviously the net unbalanced force on the hydrometer is the excess buoyancy force directed upward and equals π r2 x ρ g. Hence for the hydrometer.

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

or   Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the sought time period

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.23. A non-deformed spring whose ends are fixed has a stiffness x = 13 N/m. A small body of mass m = 25 g is attached at the point removed from one of the ends by η = 1/3 of the spring's length. Neglecting the mass of the spring, find the period of small longitudinal oscillations of the body. The force of gravity is assumed to be absent. 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Ans. At first let us calculate the stiffness k1 and k2 of both the parts of the spring. If we subject the original spring of stiffness k having the natural length l(say), under the deforming forces F - F (say) to elongate the spring by the amount x y then

F = k x (1)

Therefore the elongation per unit length of the spring is x / l0 . Now let us subject one o f the parts of the spring of natural length η\ l0 under the same deforming forces F - F. Then the elongation of the spring will be

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Thus Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE      (2)

Hence from Eqns (1) and (2)

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the sought time period

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.24. Determine the period of small longitudinal oscillations of a body with mass m in the system shown in Fig. 4.3. The stiffness values of the springs are x1 and x2. The friction and the masses of the springs are negligible. 

Ans. Similar to the Soln of 4.23, the net unbalanced force on the block m when it is at a small horizontal distance x from the equilibrium position becomes (k1 + k2)x.

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Alternate : Let us set the block m in motion to perform small oscillation. Let us locate the block when it is at a distance x from its equilibrium position.
As the spring force is restoring conservative force and deformation of both the springs are same, so from the conservation of mechanical energy of oscillation of the spring-block system :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Differentiating with respect to time

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.25. Find the period of small vertical oscillations of a body with mass m in the system illustrated in Fig. 4.4. The stiffness values of the springs are x1 and x2, their masses are negligible. 

Ans. During the vertical oscillation let us locate the block at a vertical down distance x from its equilibrium position. A t this m om ent if x1 and x2 are the additional or further elongation of the upper & lower springs relative to the equilibrium position, then the net unbalanced force on the block will be k2 x2 directed in upward direction. Hence

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE      (1)

We also have              x = x+ x2         (2)

As the springs are massless and initially the net force on the spring is also zero so for the spring
k1x1 = k2x        (3)

Solving the Eqns (1), (2) and (3) simultaneously, we get

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Thus     Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the sought time period Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.26. A small body of mass in is fixed to the middle of a stretched string of length 2/. In the equilibrium position the string tension is equal to To. Find the angular frequency of small oscillations of the body in the transverse direction. The mass of the string is negligible, the gravitational field is absent. 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Ans.The force F, acting on the weight deflected from the position of equilibrium is 2 T0 sin θ.
Since the angle θ is small, the net restoring force, Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

4.27. Determine the period of oscillations of mercury of mass m = 200 g poured into a bent tube (Fig. 4.5) whose right arm forms an angle θ = 30° with the vertical. The cross-sectional area of the tube is S = 0.50 cm2. The viscosity of mercury is to be neglected.

Ans. If the mercury rises m the left arm by x it m ust fall by a slanting length equal to x in the other arm.

Total pressure difference in the two arms will then be ρg x + pgx cosθ = ρgx (1 + cosθ)

This will give rise to a restoring force - ρgSx (1+ cosθ)

This must equal mass times acceleration which can be obtained from work energy principle.

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q. 28. A uniform rod is placed on two spinning wheels as shown in Fig. 4.6. The axes of the wheels are separated by a distance l = 20 cm, the coefficient of friction between the rod and the wheels is k = 0.18. Demonstrate that in this case the rod performs harmonic oscillations. Find the period of these oscillations. 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Ans. In the equilibrium position the C.M. of the rod lies nid way between the two rotating wheels. Let us displace the rod horizontally by some small distance and then release it Let us depict the forces acting on the rod when its C.M. is at distance x from its equilibrium position (Fig.). Since there is no net vertical force acting on the rod, Newton’s second law gives :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

For the translational motion of the rod from the Eqn. : Fx = m wcx

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE         (2)

As the rod experiences no net torque about an axis perpendicular to the plane of the Fig. through the C.M. of the rod.

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE        (3)

Solving Eqns. (1), (2) and (3) simultaneously we get

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the sought time period 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE 

 

Q.29. Imagine a shaft going all the way through the Earth from pole to pole along its rotation axis. Assuming the Earth to be a homogeneous ball and neglecting the air drag, find:
 (a) the equation of motion of a body falling down into the shaft;
 (b) how long does it take the body to reach the other end of the shaft;
 (c) the velocity of the body at the Earth's centre. 

Ans. (a) The only force acting on the ball is the gravitational force Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE of magnitude Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE where y is the gravitational constant ρ, the density of the Earth and r is the distance of the body from the centre of the Earth.

But, Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEEso the expression for Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE can be written as,

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE  here R is the radius of the Earth and the equation of motion in projection 

 form has the form, or, Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(b) The equation, obtained above has the form of an equation of S.H.M. hawing the time period,

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Hence the body will reach the other end of the shaft in the time,

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(c) From the conditions of the speed of the body at the centre of the Earth will be maximum, having the magnitude,

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.30. Find the period of small oscillations of a mathematical pendulum of length 1 if its point of suspension 0 moves relative to the Earth's surface in an arbitrary direction with a constant acceleration w (Fig. 4.7). Calculate that period if l = 21 cm, ω = g/2, and the angle between the vectors w and g equals β = 120°. 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Ans. In the frame of point of suspension the mathematical pendulum of mass m (say) will oscillate. In this frame, the body m will experience the inertial force Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE in addition to the real forces during its oscillations. Therefore in equilibrium position m is deviated by some angle say a. In equilibrium position

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

So, from these two Eqns

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 Let us displace the bob m from its equilibrium position by some small angle and then release it Now locate die ball at an angular position (α + θ) from vertical as shown in the figure.
From the Eqn. :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Solving Eqns (1) and (2) simultaneously we get

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

4.31. In the arrangement shown in Fig. 4.8 the sleeve M of mass m = 0.20 kg is fixed between two identical springs whose combined stiffness is equal to x = 20 N/m. The sleeve can slide without friction over a horizontal bar AB. The arrangement rotates with a constant angular velocity ω = 4.4 rad/s about a vertical axis passing through the middle of the bar. Find the period of small oscillations of the sleeve. At what values of ω will there be no oscillations of the sleeve? 

Ans. Obviously the sle e v e performs small oscillations in the frame of rotating rod. In the rod’s frame let us depict the forces acting on the sleeve along the length of the rod while the sleeve is at a small distance x towards right from its equilibrium position. The free body diagram of block does not contain Coriolis force, because it is perpendicualr to the length of the rod.
From Fx - mwx for the sleeve in the frame of rod
Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 It is obvious from Eqn (1) that the sleeve will not perform small oscillations if

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.32. A plank with a bar placed on it performs horizontal harmonic oscillations with amplitude a = 10 cm. Find the coefficient of friction between the bar and the plank if the former starts sliding along the plank when the amplitude of oscillation of the plank becomes less than T = 1.0 s.

Ans.  When the bar is about to start sliding along the plank, it experiences the maximum restoring force which is being provided by the limiting friction, Thus

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

or,  Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.33. Find the time dependence of the angle of deviation of a mathematical pendulum 80 cm in length if at the initial moment the pendulum
 (a) was deviated through the angle 3.0° and then set free without push;
 (b) was in the equilibrium position and its lower end was imparted the horizontal velocity 0.22 m/s;
 (c) was deviated through the angle 3.0° and its lower end was imparted the velocity 0.22 m/s directed toward the equilibrium position. 

Ans.  The natural angular frequency of a mathematical pendulum equals

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 (a) We have the solution of S.H.M. equation in angular form :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

If at the initial moment i.e. at t = 0 , θ = θm than α = 0.
Thus the above equation takes the form

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Thus          0 = 3° cos 3.5 t

(b) The S.H.M. equation in angular form :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

If at the initial moment t = 0 , θ = 0 , then α = 0 .Then the above equation takes the form

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Let v0 be the velocity of the lower end of pendulam at θ = 0, then from conserved of mechanical energy of oscillaton

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Thus the sought equation becomes

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(c) Let θO and v0 be the angular deviation and linear velocity at t = 0.
As the mechanical energy of oscillation of the mathematical pendulum is conservation 

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Then from θ = 5.4° sin (3.5 t + α), we see that Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE because the velovity is directed towards the centre. Thus

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE radians and we get the answer.

 

Q.34. A body A of mass m1 =  1.00 kg and a body B of mass m = 4.10 kg are interconnected by a spring as shown in Fig. 4.9. The body A performs free vertical harmonic oscillations with amplitude a = 1.6 cm and frequency = 25 s-1. Neglecting the mass of the spring, find the maximum and minimum values of force that this system exerts on the bearing surface. 

Ans. While the body A is at its upper extreme position, the spring is obviously elongated by the amount

 Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

If we indicate y-axis in vertically downward direction, Newton’s second law of motion in projection form i.e. F= mwfor body A gives :

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(Because at any extreme position the magnitude of acceleration of an oscillating body equals ω2a and is restoring in nature.)

If N be the normal force exerted by the floor on the body B, while the body A is at its upper extreme position, from Newton’s second law for body B

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

When the body A is at its lower extreme position, the spring is compresed by the distance

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 From Newton’s second law in projeciton fonn i.e. Fy = mwy for body A at this state:

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 

Q.35. A plank with a body of mass m placed on it starts moving straight up according to the law y = a (1 — cos ωt), where y is the displacement from the initial position, ω = 11 s -1 .

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

Find: (a) the time dependence of the force that the body exerts on the plank if a = 4.0 cm; plot this dependence;
 (b) the minimum amplitude of oscillation of the plank at which the body starts falling behind the plank;
 (c) the amplitude of oscillation of the plank at which the body springs up to a height h = 50 cm relative to the initial position (at the moment t = 0). 

Ans. (a) For the block from Newton’s second law in projection form F= mwy

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE       (1)

But from     y = a (1 - cos ωt)

We get     Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE              (2)

From Eqns (1) and (2)

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE              (3)

 From Newtons’s third law the force by which the body m exerts on the block is directed vertically downward and equls

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(b) When the body m starts, falling behind the plank or looking contact, N = 0, (because the normal reaction is the contact force). Thus from Eqn. (3)

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

(c) We observe that the motion takes place about the mean position y = a. A t the initial instant y = 0. As shown in (b) the normal reaction vanishes at a height (g/ω2) above the position of equilibrium and the body flies off as a free body. The speed of the body at a distance (g/ω2) from the equilibrium position is Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE so that the condition of the problem gives

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

 Hence solving the resulting quadratic equation and taking the positive roof,

Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE

The document Irodov Solutions: Mechanical Oscillations- 3 Notes | Study I. E. Irodov Solutions for Physics Class 11 & Class 12 - JEE is a part of the JEE Course I. E. Irodov Solutions for Physics Class 11 & Class 12.
All you need of JEE at this link: JEE

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