﻿ Two similar charges having mass m and 2m are placed in an electri

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## NEET Physics Solved Question Paper 2006

#### Multiple Choice Questions

1.

2.

Two weights w1 and w2 are suspended to the two strings on a frictionless pulley. When the pulley is pulled up with an acceleration g, then the tension in the string is :

# 3.Two similar charges having mass m and 2m are placed in an electric field. The ratio of their kinetic energy is :4:1 1:1 2:1 1:2

C.

2:1

Force on charged particle is electric field F = q E

4.

In a system of units if force (F), acceleration (A), and time (T) are taken as fundamental units, then the dimensional formula of energy is:

• FA2T

• FAT2

• F2AT

• FAT

5.

A car starts from rest, moves with an acceleration a and then decelerates at a constant rate b for sometimes to come to rest. If the total time taken is t. The maximum velocity of car is given by :

6.

Two planets are revolving around the earth with velocities v1 and v2 and in radii r1 and r2 ( r1 > r2 ) respectively. Then :

• v1 = v2

• v1 > v2

• v1 < v2

7.

The angular momentum of a rotating body changes from Ao to 4Ao in 4 minutes. The torque acting on the body is:

• 3/4 Ao

• 4Ao

• 3Ao

• 3/2Ao

8.

Earth is revolving around the sun. If the distance of the earth from the sun is reduced to 1/4th of the present distance then the length of present day will be reduced by :

• $\frac{1}{4}$

• $\frac{1}{2}$

• $\frac{1}{8}$

• $\frac{1}{6}$

9.

There are two planets and the ratio of radius of the two planets is K but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity ?

• (kg)1/2

• (kg)-1/2

• (kg)2

• (kg)-2

10.

If a spherical ball rolls on a table without slipping the friction of its total energy associated with rotational energy is :

• 3/5

• 2/7

• 2/5

• 3/7