Oscillations and Waves (BITSAT Physics): Questions 13 - 18 of 22

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Question number: 13

» Oscillations and Waves » Wave Motion

MCQ▾

Question

A tuning fork makes 250 vibrations per second in air. When the velocity of sound is 330ms , then wave length of the tone emitted is

Choices

Choice (4) Response
a.

0.98m

b.

1.32m

c.

0.59m

d.

1.11m

Question number: 14

» Oscillations and Waves » Doppler Effect in Sound

MCQ▾

Question

The Doppler’s effect is applicable for

Choices

Choice (4) Response
a.

Sound waves

b.

Space waves

c.

Light waves

d. Both a. and c. are correct

Question number: 15

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

The velocity of sound is greatest in –

Choices

Choice (4) Response
a.

Air

b.

Water

c.

Metal

d.

Vacuum

Question number: 16

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

A body is executing simple harmonic motion with an angular frequency 2radsec , the velocity of the body at 20mm displacement, when the amplitude of motion is 60mm , is

Choices

Choice (4) Response
a.

131mms

b.

113mms

c.

118mms

d.

90mms

Question number: 17

» Oscillations and Waves » Simple Harmonic Motion » Energy

MCQ▾

Question

A particle executes simple harmonic motion of amplitude A . At what distance from the mean position its kinetic energy is equal to its potential energy is equal to its potential energy?

Choices

Choice (4) Response
a.

0.71A

b.

0.61A

c.

0.81A

d.

0.51A

Question number: 18

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

MCQ▾

Question

A resonance air column of length 20cm resonates with a tuning fork of frequency 250Hz . The speed of the air is –

Choices

Choice (4) Response
a.

75ms

b.

150ms

c.

200ms

d.

300ms

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