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SRMJEEE Physics Mock Test - 8 - JEE MCQ


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30 Questions MCQ Test SRMJEEE Subject Wise & Full Length Mock Tests 2024 - SRMJEEE Physics Mock Test - 8

SRMJEEE Physics Mock Test - 8 for JEE 2024 is part of SRMJEEE Subject Wise & Full Length Mock Tests 2024 preparation. The SRMJEEE Physics Mock Test - 8 questions and answers have been prepared according to the JEE exam syllabus.The SRMJEEE Physics Mock Test - 8 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for SRMJEEE Physics Mock Test - 8 below.
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SRMJEEE Physics Mock Test - 8 - Question 1

The number of turns in the primary and the secondary turns of a transformer are 1000 and 3000 respectively. If 80 volts A.C. is supplied to the primary coil of the transformer, then the potential difference/turn of the secondary coil would be

SRMJEEE Physics Mock Test - 8 - Question 2

Cathode rays are similar to visible light rays, in that

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SRMJEEE Physics Mock Test - 8 - Question 3

A series combination of R,L,C is connected to an a.c. source. If resistance is 3 Ω and the circuit is :

Detailed Solution for SRMJEEE Physics Mock Test - 8 - Question 3


Power factor, 

SRMJEEE Physics Mock Test - 8 - Question 4

A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity ω. The force exerted by the liquid at the other end is

SRMJEEE Physics Mock Test - 8 - Question 5

A moving coil galvanometer has a resistance of 50 Ω and gives full scale deflection for 10 mA. How could it be converted into an ammeter with a full scale deflection for 1A?

SRMJEEE Physics Mock Test - 8 - Question 6

A shell initially at rest explodes into two pieces of equal mass. The two pieces will

SRMJEEE Physics Mock Test - 8 - Question 7

Photo cell is a device to

SRMJEEE Physics Mock Test - 8 - Question 8

Stress to Strain ratio is equivalent to

SRMJEEE Physics Mock Test - 8 - Question 9

Consider the following statements regarding the magnitude of barrier potential of a PN junction:
1. It is independent of temperature
2. It depends on difference between fermi levels on two sides of junction.
3. It depends on forbidden energy gap on two types of semiconductors
4. It depends on impurity concentration in P and N type semiconductors
Which of the statements given above is/are correct?

SRMJEEE Physics Mock Test - 8 - Question 10

If an unchanged capacitor is charged by connecting it to a battery, then the amount of energy lost as heat is

SRMJEEE Physics Mock Test - 8 - Question 11

A satellite is revolving near the earth's surface. Its orbital velocity is

SRMJEEE Physics Mock Test - 8 - Question 12

A motorcyclist of mass m is to negotiate a curve of radius r with a speed ν. The minimum value of the coefficient of friction so that this negotiation may take place safely, is

SRMJEEE Physics Mock Test - 8 - Question 13

Heat travels through vacuum by

SRMJEEE Physics Mock Test - 8 - Question 14

The factor not needed to calculate heat lost or gained when there is no change of state, is

SRMJEEE Physics Mock Test - 8 - Question 15

A rocket of mass 6000 kg is fired from earth with speed 1 km/s. What should be the rate of ejection of gas, so that it moves with initial acceleration 20 m/s2? (Take g = 10 m/s2)

Detailed Solution for SRMJEEE Physics Mock Test - 8 - Question 15

ΔM/Δt

= rate of ejection of fuel
Acceleration of the rocket in the presence of grarity 

SRMJEEE Physics Mock Test - 8 - Question 16

A galvanometer of 100 Ω resistance gives full scale deflection with 0.01 A current. How much shunt resistance should be connected with it to convert into an ammeter of range 10 A?

SRMJEEE Physics Mock Test - 8 - Question 17

In a container, the velocity of water flowing through a hole at a depth h from the surface of water is 5 m-s⁻1. If the container has the hole at a depth 4h from the surface of water, then velocity of water flowing through the hole is

SRMJEEE Physics Mock Test - 8 - Question 18

A body falling from a high Minaret travels 40 metres in the last 2 seconds of its fall to ground. Height of Minaret in metres is (take g = 10m/s2)

SRMJEEE Physics Mock Test - 8 - Question 19

The figure below shows the various positions (labelled by subscripts) of small magnetized needles P and Q. The arrows show the direction of their magnetic moment. Which configuration corresponds to the lowest potential energy among all the configurations shown?

SRMJEEE Physics Mock Test - 8 - Question 20

A stone released with zero velocity from the top of the tower reaches the ground in 4 seconds. The height of the tower is about

SRMJEEE Physics Mock Test - 8 - Question 21

A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5m/s2, the reading of the spring balance will be

SRMJEEE Physics Mock Test - 8 - Question 22

Two simple pendulums of length 0.5 m and 20 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed... oscillations

SRMJEEE Physics Mock Test - 8 - Question 23

Max. height of a bullet when fired at 30° with the horizontal is 11 m. Then height when it is fired at 60° is

SRMJEEE Physics Mock Test - 8 - Question 24

Two capillary tubes of same diameter are put vertically one each in two liquids whose relative densities are 0.8 and 0.6 and surface tension are 60 and 50 dynes/cm respectively. Ratio of heights of liquid in the two tubes, h₁ / h₂ is

SRMJEEE Physics Mock Test - 8 - Question 25

Green light of wavelength 5460 Å is incident on an air glass interface. If refractive index of glass is 1.5, then wavelength of light in glass would be

SRMJEEE Physics Mock Test - 8 - Question 26

A circular turn table has a block of ice placed at its centre. The system rotates with an angular speed ω about an axis passing through the centre of the table. If the ice melts on its own without any evaporation, the speed of rotation of the system

SRMJEEE Physics Mock Test - 8 - Question 27

In an experiment of simple pendulum, the errors in the measurement of length of the pendulum (L) and time period (T) are 3%v and 2% respectively. The maximum percentage error in the values of (L/T2) is

SRMJEEE Physics Mock Test - 8 - Question 28

When a cylindrical tube is dipped vertically into a liquid, the angle of contact is 140°. When the tube is dipped with an inclination of 40°, then angle of contact is

SRMJEEE Physics Mock Test - 8 - Question 29

The emf in a thermoelectric circuit with one junction at 0°C and the other at t°C is given by E = At-Bt2. The neutral temperature is then

SRMJEEE Physics Mock Test - 8 - Question 30

A cylinder contained 10 kg of gas at 107 N/m2. The quantity of gas taken out of cylinder if final pressure is 2.5 x 106 N ∕ m2 is (temp. is constant)

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