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Test: Physics Mock Test - 10 - NEET MCQ


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30 Questions MCQ Test - Test: Physics Mock Test - 10

Test: Physics Mock Test - 10 for NEET 2024 is part of NEET preparation. The Test: Physics Mock Test - 10 questions and answers have been prepared according to the NEET exam syllabus.The Test: Physics Mock Test - 10 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Physics Mock Test - 10 below.
Solutions of Test: Physics Mock Test - 10 questions in English are available as part of our course for NEET & Test: Physics Mock Test - 10 solutions in Hindi for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Physics Mock Test - 10 | 45 questions in 45 minutes | Mock test for NEET preparation | Free important questions MCQ to study for NEET Exam | Download free PDF with solutions
Test: Physics Mock Test - 10 - Question 1
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If the rotational velocity of a dynamo armature is doubled, then the induced e.m.f. will

Test: Physics Mock Test - 10 - Question 2
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The masses of neutron and proton are 1.0087 a.m.u and 1.0073 a.m.u respectively. If the neutrons and protons combine to form a helium nucleus of mass 4.0015 a.m.u. The binding energy of the helium will be

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Test: Physics Mock Test - 10 - Question 3
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Two blocks of masses 6 kg and 4 kg are placed on a frictionless surface and connected by a spring. If the heavier mass is given a velocity of 14 m/s in the direction of lighter one, then the velocity gained by the centre of mass will be

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Test: Physics Mock Test - 10 - Question 4
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A particle moves in a circular orbit under the action of a central attractive force inversely proportional to the distance 'r'. The speed of the particle is
Detailed Solution for Test: Physics Mock Test - 10 - Question 4

 

Test: Physics Mock Test - 10 - Question 5
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A lift is moving with a retardation of 5 ms-1. The percentage change in the weight of person in the lift is (g = 10 ms-2)
Test: Physics Mock Test - 10 - Question 6
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When a current flows through a conductor its temperature
Detailed Solution for Test: Physics Mock Test - 10 - Question 6

As we know,

Power=I2R

Therefore, this power is released in the form of heat in the conductor and this heat increases the temperature of the conductor.

Hence, temperature increases.

Test: Physics Mock Test - 10 - Question 7
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A lead-acid battery of a car has an e.m.f. of 12 V. If the internal resistance of the battery is 0.5 ohm, the maximum current that can be drawn from the battery will be
Test: Physics Mock Test - 10 - Question 8
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The cathode rays have particle nature because of the fact that
Test: Physics Mock Test - 10 - Question 9
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Choke coil works on the principle of
Detailed Solution for Test: Physics Mock Test - 10 - Question 9

Self induction
The choke coil works because it acts as an inductor. When the current passing through changes, as AC currents do, it typically creates a magnetic field in the coil that works against that current. This property, known as inductance.

hence option C is correct.

Test: Physics Mock Test - 10 - Question 10
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A bar magnet dropped into a coil of a conducting wire, along its axis, will fall with an acceleration
Test: Physics Mock Test - 10 - Question 11
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An infinite number of charge of equal magnitude q, but of opposite sign are placed along the X-axis at x = 1, x = 2, x = 4, x = 8... and so on. The electric potential at the point x = 0 due to these charge will be
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Test: Physics Mock Test - 10 - Question 12
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The capacity of a condenser with two identical plates separated by a distance 'd' in air is 'C'. If the distance of separation is reduced to d/2 , the capacity is
Test: Physics Mock Test - 10 - Question 13
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On the horizontal surface of a truck (μ=0.6), a block of mass 1 kg is placed.If the truck is accelerating at the rate of 5 m/sec2 then frictional force on the block will be
Detailed Solution for Test: Physics Mock Test - 10 - Question 13

If the block has to move, it should overcome static frictional force which is μmg = 0.6×10 = 6N

As the truck is moving with an acceleration, a pseudo force acts on the block which is ma = 1×5 = 5N

As this force is not enough for the block to move, an equal frictional force acts in the opposite direction which is equal to 5N

Test: Physics Mock Test - 10 - Question 14
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The escape velocity of an object from the earth depends upon the mass of the earth (M), its mean density (ρ),its radius (R) and gravitational constant (G). Thus the formula for escape velocity is
Test: Physics Mock Test - 10 - Question 15
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Two stars of mass m1 and m2 are parts of a binary star system. The radii of their orbits are r1 and r2 respectively, measured from the C.M. of the system. The magnitude of gravitational force m1 exerts on m2 is
Test: Physics Mock Test - 10 - Question 16
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A black body radiates at the rate of W watts at a temperature T. If the temperature of the body is reduced to T/3, it will radiate at the rate of (in Watts)
Test: Physics Mock Test - 10 - Question 17
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If the kinetic energy of one mole of an ideal gas is given as E=3/2 RT, (where R is the universal gas constant and T is the absolute temperature of the gas), the molar specific heat at constant pressure will be given as
Test: Physics Mock Test - 10 - Question 18
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A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction
Test: Physics Mock Test - 10 - Question 19
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A wire in the form of a circular loop, of one turn carrying a current, produces magnetic induction B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is
Test: Physics Mock Test - 10 - Question 20
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The effective length of a magnet is 31.4 cm, and its pole strength is 0.5 A-m. If it is bent in the form of a semicircle,then its new magnetic moment will be
Test: Physics Mock Test - 10 - Question 21
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A capillary tube when immersed vertically in a liquid records a rise of 3 mm. If the tube is immersed in the liquid at an angle of 60o with the vertical, then height of the liquid in the capillary tube will be
Test: Physics Mock Test - 10 - Question 22
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A wire of length L and cross-section A is made of material of Young's modulus Y. If it is stretched by an amount x, then work done is
Test: Physics Mock Test - 10 - Question 23
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Two discs of the same material and thickness have radii 0.2 m and 0.6 m. Their moments of inertia about their axes will be in the ratio
Test: Physics Mock Test - 10 - Question 24
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A boat at anchor is rocked by waves whose crests are 100 m apart and whoose velocity is 25 m/sec. These waves reach the boat after every
Test: Physics Mock Test - 10 - Question 25
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A coastguard ship locates a pirate ship at a distance 560 m. It fires a cannon ball with an initial speed 82 m/s. At what angle from horizontal the ball must be fired so that it hits the pirate ship?
Test: Physics Mock Test - 10 - Question 26
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A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44 seconds, what is the magnitude and direction of acceleration of the stone?
Test: Physics Mock Test - 10 - Question 27
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The weight of a man in a lift moving upwards is 608N, while the weight of same man in the lift moving downwards with the same acceleration is 368N. His normal weight in newtons is
Test: Physics Mock Test - 10 - Question 28
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The normal magnifying power of a simple microscope is 6. The focal length of the convex lens used is
Test: Physics Mock Test - 10 - Question 29
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On a planet, a body takes 2 s to reach the surface when dropped from a height of 8 m. The time period of a simple pendulum of length 1 m on that planet is
Test: Physics Mock Test - 10 - Question 30
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Two projectiles are fired at different angles with the same magnitude of velocity, such that they have the same range. At what angles they might have been projected?
Detailed Solution for Test: Physics Mock Test - 10 - Question 30

For equal range, the particle should either be projected at an angle θ or (90 - θ)

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