AIIMS Physics: Questions 266 - 270 of 500

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Question number: 266

» Gravitation » Kepler's Laws of Planetary Motion

MCQ▾

Question

A geo – stationary satellite orbiting the earth at a height 3R from the earth surface with time period of 2T. Another satellite is orbiting the earth at a height 0.6 R from the earth surface. Find the time period of this satellite.

Choices

Choice (4) Response

a.

T3

b.

T2

c.

0.30T

d.

0.18T

Question number: 267

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

A 50 Hz a. c. source of 30 volts is connected across R and C as shown in figure below. The voltage across R is 13 volts. The voltage across C is nearly –

RC series circuit with 30 V power supply

RC Series Circuit With 30 v Power Supply

In figure resistance R and capacitor C is connected in series, with 50 Hz a. c. source of 30 volts supply.

Choices

Choice (4) Response

a.

15 V

b.

27V

c.

30 V

d.

Not possible to determine unless values of R and C are given

Question number: 268

» Kinematics » Uniform and Non-Uniform Motion

MCQ▾

Question

A 500 kg lift is supported by a cable that can support 1000 kg. The shortest distance in which the lift can be stopped when it is descending with a speed of 5ms1 is – (Takeg=10ms2)

Choices

Choice (4) Response

a.

2m

b.

532m

c.

54m

d.

516m

Question number: 269

» Kinetic Theory of Gases » Heat Capacities and Its Relations

MCQ▾

Question

If a gas has 9 degree of freedom, the ratio CpCv of the gas is –

Choices

Choice (4) Response

a.

5

b.

119

c.

192

d.

72

Question number: 270

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A particle moves on a circle of radius r such that the distance covered on the circle varies with time according to the law s=5t2 . What is the total acceleration of the particle at t=1sec .

Choices

Choice (4) Response

a.

10rr2+100

b.

r2+25

c.

r2+100

d.

10rr2+100

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