AIIMS Physics: Questions 276 - 280 of 500

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Question number: 276

» Electrostatics » Electric Field

MCQ▾

Question

Two parallel large thin metal sheets have equal surface charge densities (σ=35.4×1012Cm2) of opposite signs. The electric field between these sheets is –

Choices

Choice (4) Response
a.

1.5NC

b.

1.5×1010NC

c.

4×1010NC

d.

4NC

Question number: 277

» Kinematics » Position-Time Graphs

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.

25ms1

b.

500ms1

c.

2500ms1

d.

510ms1

Question number: 278

» Thermodynamics » Carnot Engine and Its Efficiency

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

» Work, Energy and Power » Power

MCQ▾

Question

A body moves along the straight line by a machine delivering constant power. The ratio of distance at t=3 and t=5 moved by the body is –

Choices

Choice (4) Response
a.

27125

b.

27125

c.

19

d.

35

Question number: 280

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

MCQ▾

Question

The pressures of water in a pipe when the tap is open and closed are respectively 4×105Nm2 and 4.5×105Nm2 . With the open tap the velocity of water flowing is –

Choices

Choice (4) Response
a.

20ms

b.

10ms

c.

15ms

d.

5ms

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