# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1752 - 1755 of 2320

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## Question number: 1752

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MCQ▾

### Question

A pendulum suspended from the ceiling of a train has a period T, when the train is at rest. When the train is accelerating with a uniform acceleration a, the period of oscillation will,

### Choices

Choice (4)Response

a.

Become infinite

b.

Remain unaffected

c.

Decrease

d.

Increase

## Question number: 1753

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MCQ▾

### Question

Which of the following are not corrected to make period of simple pendulum two times:

(a) its length is doubled

(b) the mass of the bob is doubled

(C) the mass of the bob and the length of the pendulum are doubled

(d) its length is made four times

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

### Choices

Choice (4)Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1,2 and 3 are correct

d.

1 and 3 are correct

## Question number: 1754

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MCQ▾

### Question

A particle with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force F sin ωt. If the amplitude of the particle is maximum for ω = ω 1 and the energy of the particle is maximum for ω = ω 2, then (where ω 0 natural frequency of oscillation of particle)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1755

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MCQ▾

### Question

At any instant of time the displacement of a simple pendulum is 0.08 m and acceleration is 2 m/sec 2; the angular velocity will be:

### Choices

Choice (4)Response

a.

b.