# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 758 - 760 of 2184

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## Question number: 758

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MCQ▾

### Question

A chain of linear density 10 kg/m and length 8 m is lying on the table with 2 m of chain hanging from the edge. The work done in lifting the chain on the table will be –

### Choices

Choice (4) Response

a.

176 J

b.

532 J

c.

116 J

d.

392 J

## Question number: 759

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MCQ▾

### Question

A solenoid has an inductance of 50 mH and a resistance of 0.025 Ω. If it is connected to a battery, how long will it take for the current to reach one half of its final equilibrium value?

### Choices

Choice (4) Response

a.

1.34 sec

b.

1.38 sec

c.

0.23 sec

d.

1.38 ms

## Question number: 760

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MCQ▾

### Question

Choose the wrong statements about the center of mass (CM) of a system of two particles

(1) The CM lies on the line joining the two particles midway between them

(2) The CM lies on the line joining them at a point whose distance from each particle is proportional to the square of the mass of that particle

(3) The CM is on the line joining them at a point whose distance from each particle is proportional to the mass of that particle

(4) The CM lies on the line joining them at a point whose distance from each particle is inversely proportional to the mass of that particle

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct