# NEET Physics: Questions 806 - 810 of 2142

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

## Question number: 806

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.

Mass of handle piece is double the mass of bottom piece

b.

The handle piece will have larger mass

c.

The two pieces will have the same mass

d.

The bottom piece will have larger mass

## Question number: 807

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.

b.

c.

zero

d.

## Question number: 808

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.

13.33 N

b.

36.67 N

c.

11.67 N

d.

All of the above

## Question number: 809

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

Increase

b.

Decrease

c.

Be zero

d.

Remain same

## 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: 810 (2 of 3 Based on Passage) Show Passage

MCQ▾

### Question

Maximum extension in the spring after system loses contact with wall

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

f Page