# AIIMS (All India Institute of Medical Sciences) Physics: Questions 394 - 399 of 500

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## Question number: 394

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MCQ▾

### Question

If the system takes 150 Cal. heat, and releases 60 cal. to sink, if source temperature is 115°C find the sink temp –

### Choices

Choice (4)Response

a.

127°C

b.

120 °C

c.

37.4°C

d.

54°C

## Question number: 395

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MCQ▾

### Question

The magnetic needle of a tangent galvanometer is deflected at an angle 60°. The horizontal component of earth’s magnetic field is along the plane of the coil. The magnetic field of coil:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 396

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MCQ▾

### Question

If vibrations of a string are to be increased to a factor of four, then tension in the string must be made –

### Choices

Choice (4)Response

a.

Sixteen times

b.

Eight times

c.

Ten times

d.

Four times

## Question number: 397

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MCQ▾

### Question

In simplest terms, the energy of a wave is directly proportional to the square of its –

### Choices

Choice (4)Response

a.

Length

b.

Reflection

c.

Refraction

d.

Height

## Question number: 398

Edit
MCQ▾

### Question

What is the area of the plate of a 2F parallel plate capacitor, if the separation between the plates is 3 mm?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 399

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MCQ▾

### Question

The rate of flow of a liquid through a capillary tube of radius is V when the pressure difference across the two ends of the capillary is P. If pressure is increased by 6P and radius is reduced to then the rate of flow becomes,

### Choices

Choice (4)Response

a.

b.

c.

d.

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