AIIMS (All India Institute of Medical Sciences) Physics: Questions 419 - 423 of 500

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Question number: 419

» Kinematics » Motion in a Plane

MCQ▾

Question

A particle moves in xy – plane such that its position is given by . Velocity and acceleration at time are respectively –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 420

» Electrostatics » Capacitors

MCQ▾

Question

125 drops of liquid are combined to form a bigger single drop. The capacitance of single small drop and single big drop will be in ratio –

Choices

Choice (4) Response

a.

1: 5

b.

1: 25

c.

25: 1

d.

5: 1

Question number: 421

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

The velocities of sound at the same pressure in two monatomic gases of densities and are and respectively. If, then the value of

Choices

Choice (4) Response

a.

5

b.

c.

25

d.

Question number: 422

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

MCQ▾

Question

A common hydrometer, which is graduated from 0 to 10 downwards, reads zero when floating in water and 10 when floating in liquid of specific gravity 1.4. In an unknown liquid it reads 7, the specific gravity of the unknown liquid is –

Choices

Choice (4) Response

a.

1.4

b.

1.3

c.

1.2

d.

1.6

Question number: 423

» Ray Optics » Snell's Law

MCQ▾

Question

What is the velocity of the light in the medium if and the velocity of light in a vacuum is ?

Choices

Choice (4) Response

a.

b.

c.

d.

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