Physics

NEET Class 12

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Advertisement

Advertisement

1.

The physical quantity having the dimensions [ M^{-1} L^{-3} T^{3} A^{2} ] is

resistance

resistivity

electrical conductivity

electromotive force

2.

Velocity-time curve for a body projected vertically upwards is

parabola

ellipse

hyperbola

straight line

3.

The numerical ratio of displacement to the distance covered is always

less than one

equal to one

equal to or less than one

equal to or greater than one

4.

A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passenger in the train is

east-north direction

west-north direction

south-east direction

None of the above

Advertisement

5.

A solid sphere and a hollow sphere of the same material and of a same size can be distinguished without weighing

by determining their moments of inertia about their coaxial axe

by rolling them simultaneously on an inclined plane

by rotating them about a common axis of rotation

by applying equal torque on them

6.

Point masses 1, 2, 3 and 4 kg are lying at the points (0, 0, 0), (2, 0, 0), (0, 3, 0) and (- 2, -2, 0) respectively. The moment-of inertia of this system about X-axis will be

43 kg-m

^{2}34 kg-m

^{2}27 kg-m

^{2}72 kg-m

^{2}

7.

The radius of gyration of a body about an axis at a distance 6 cm from its centre of mass is 10 cm. Then, its radius of gyration about a parallel axis through its centre of mass will be

80 cm

8 cm

0.8 cm

80 m

8.

A bullet of mass 20 g and moving with 600 m/s collides with a block of mass 4 kg hanging with the string. What is velocity of bullet when it comes out of block, if block rises to height 0.2 m after collision?

200 m/s

150 m/s

400 m/s

300 m/s

Advertisement

9.

Voltage in the secondary coil of a transformer does not depend upon

frequency of the source

voltage in the primary coil

ratio of number of turns in the two coils

Both (b) and (c)

10.

A ball of mass 2 kg moving with velocity 3 m/s collides with spring of natural length 2 m and force constant 144 N/m. What will be length of compressed spring?

2 m

1.5 m

1 m

0.5 m

Advertisement

Textbook Solutions | Additional Questions