# AIIMS (All India Institute of Medical Sciences) Physics: Questions 276 - 281 of 500

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## Question number: 276

MCQ▾

### Question

Two parallel large thin metal sheets have equal surface charge densities of opposite signs. The electric field between these sheets is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 277

MCQ▾

### Question

The maximum range of a gun or horizontal range is 25 km. If g = 10 ms-2. The muzzle velocity of the shell must be –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 278

MCQ▾

### Question

If the system takes 160 Cal. heat, and releases 100 cal. to sink, if source temperature is 180°C find the sink temp –

### Choices

Choice (4) Response

a.

100°celsius

b.

30°celsius

c.

10°celsius

d.

120°celsius

## Question number: 279

MCQ▾

### Question

A body moves along the straight line by a machine delivering constant power. The ratio of distance at and moved by the body is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 280

MCQ▾

### Question

The pressures of water in a pipe when the tap is open and closed are respectively and. With the open tap the velocity of water flowing is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 281

MCQ▾

### Question

A metal wire of cross – sectional area is held taut at between two rigid supports with negligible tension in it. Find the tension developed in the wire if it is cooled to .

(Given of metal and )

### Choices

Choice (4) Response

a.

900 N

b.

700 N

c.

760 N

d.

840 N