# NEET Physics: Questions 926 - 930 of 2142

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## Question number: 926

MCQ▾

### Question

Three equal weights of mass m each are hanging on a string passing over a fixed pulley as shown in fig. The tensions in the string connecting weights A to B and B to C will respectively be -

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 927

MCQ▾

### Question

The power output of a 92 U 235 reactor if it takes 30 days to use up 2 kg of fuel and if each fission gives 185 MeV of energy (Avogadro number = 6 x 10 23 /mole) will be –

### Choices

Choice (4) Response

a.

58.4 MW

b.

584 W

c.

5.84 MW

d.

5840 MW

## Question number: 928

MCQ▾

### Question

A force F = (7 - 2x + 3x 2) N is applied on a 2 kg mass which displaces it from x = 0 to x = 2 m. Work done in joule is -

### Choices

Choice (4) Response

a.

7

b.

3

c.

2

d.

13

## Question number: 929

MCQ▾

### Question

Inelastic collision is the-

### Choices

Choice (4) Response

a.

Collision of ideal gas molecules with the walls of the container

b.

collision of electron and positron to an annihilate each other.

c.

collision of two rigid solid spheres lying on a frictionless table

d.

scattering of a-particles with the nucleus of gold atom

## Question number: 930

MCQ▾

### Question

Block A weighs 6 N and block B weighs 4 N. The coefficient of kinetic friction is 0.25 for all surfaces. find the force F to slide B at a constant speed when A is held at rest.

### Choices

Choice (4) Response

a.

4N

b.

1N

c.

2N

d.

3.5N

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