﻿ NEET Physics Solved Question Paper 2012 | Previous Year Papers | Zigya

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## NEET Physics Solved Question Paper 2012

#### Multiple Choice Questions

1.

The dimensions of  are

• [L1/2 T-1/2]

• [L-1T]

• [LT-1]

• [LT-1]

1137 Views

2.

A stone is dropped from a height h. It hits the ground with a certain momentum p. If the same stone is dropped from a height 100% more than the previous height, the momentum when it hits the ground will change by

• 68%

• 41%

• 200%

• 200%

2366 Views

3.

A car of mass m starts from rest and accelerates so that the instantaneous power delivered to the car has a constant magnitude Po. The instantaneous velocity of this car is proportional to

• t2Po

• t1/2

• t-1/2

• t-1/2

874 Views

4.

A car of mass m is moving on a level circular track of radius R. If  represents the static friction between the road and tyres of the car, the maximum speed of the car in circular motion is given by

834 Views

5.

A circular platform is mounted on the frictionless vertical axle. Its radius R =2 m and its moment of inertia about the axle is 200 kg m2. It is initially at rest. A 50 kg man stands on the edge of the platform and begins to walk along the edge at the speed of 1 ms-1 relative to the ground. Time taken by the man to complete one revolution is

• π sec

• 3π/2 sec

• 2π sec

• 2π sec

2312 Views

6.

The moment of inertia of a uniform circular disc is maximum about an axis perpendicular to the disc and passing through

• B

• C

• D

• D

931 Views

7.

Three masses are placed on the x- axis: 300g at origin, 500g at x = 40 cm and 400 g at x = 70 cm. The distance of the centre of mass from the origin is

• 40 cm

• 45 cm

• 50 cm

• 50 cm

1249 Views

8.

If ve is escape velocity and vo is orbital velocity of a satellite for orbit close to the Earth's surface, then these are related by

1372 Views

9.

Which one of the following plots represents the variation of the gravitational field on a particle with distance r due to a thin spherical shell of radius R? (r is measured from the centre of the spherical shell).

817 Views

10.

A slab of stone of area of 0.36 m2 and thickness 0.1 m is exposed on the lower surface to steam at 100oC. A block of ice at 0o C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is
(Given latent heat of fusion of ice = 3.36 x 105 J Kg-1)

• 1.24 J/m/s/oC

• 1.29 J/m/soC

• 2.05 J/m/so C

• 2.05 J/m/so C

774 Views