# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 807 - 811 of 2247

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## Question number: 807

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MCQ▾

### Question

A cricket bat is cut at the location of its center of mass as shown in the fig. Then

### Choices

Choice (4) Response

a.

The handle piece will have larger mass

b.

The bottom piece will have larger mass

c.

Mass of handle piece is double the mass of bottom piece

d.

The two pieces will have the same mass

## Question number: 808

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MCQ▾

### Question

Two particles of masses m l and m 2 initially at rest start moving towards each other under their mutual force m attraction. The speed of the center of mass at any time u when they are at a distance r apart, is

### Choices

Choice (4) Response

a.

zero

b.

c.

d.

## Question number: 809

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MCQ▾

### Question

A rope of length 15 m and linear density 2 kg/m is lying length wise on a horizontal smooth table. It is pulled by a force of 25 N. The tension in the rope at the point 7 m away from the point of application, will be –

### Choices

Choice (4) Response

a.

11.67 N

b.

13.33 N

c.

36.67 N

d.

Question does not provide sufficient data or is vague

## Question number: 810

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MCQ▾

### Question

The resistance of a coil for dc is 5 ohm. In ac, the resistance will

### Choices

Choice (4) Response

a.

Decrease

b.

Remain same

c.

Increase

d.

Be zero

## Passage

A system consists of block A and B each of mass m connected by a light spring as shown in the figure with block B in contact with a wall. The block A compresses the spring by 3mg /k from natural length of spring and then released from rest. Neglect friction anywhere.

## Question number: 811 (2 of 3 Based on Passage) Show Passage

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MCQ▾

### Question

Velocity of center of mass of system comprising A ands when block B just loses contact with the wall

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

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