Oscillations and Waves (AIIMS (All India Institute of Medical Sciences) Physics): Questions 5 - 9 of 50

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Question number: 5

» Oscillations and Waves » Speed of a Wave

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Appeared in Year: 2002

MCQ▾

Question

A string in a musical instrument is 50 cm long and its fundamental frequency is 800 Hz. If a frequency of 1000 Hz is to be produced, then required length of string is –

Choices

Choice (4) Response

a.

100 cm/s

b.

20 cm/s

c.

200 cm/s

d.

50 cm/s

Question number: 6

» Oscillations and Waves » Speed of a Wave

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Appeared in Year: 2001

MCQ▾

Question

The tension in a piano wire is 10N. What should be the tension in the wire to produce a note of double the frequency?

Choices

Choice (4) Response

a.

40N

b.

80N

c.

10N

d.

20N

Question number: 7

» Oscillations and Waves » Doppler Effect in Sound

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Appeared in Year: 2002

MCQ▾

Question

A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of . Frequency of sound to be heard by the listener is (Velocity of sound )

Choices

Choice (4) Response

a.

286.5 Hz

b.

644.8 Hz

c.

733.3 Hz

d.

481.2 Hz

Question number: 8

» Oscillations and Waves » Simple Harmonic Motion » Energy

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Appeared in Year: 2001

MCQ▾

Question

A sings with a frequency (n) and B sings with a frequency that of A. If the energy remains the same and the amplitude of A is a, then amplitude of B will be –

Choices

Choice (4) Response

a.

4a

b.

2a

c.

a

d.

8a

Question number: 9

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

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Appeared in Year: 2000

MCQ▾

Question

A standing wave having 3 nodes and 2 antinodes is formed between distances then the wavelength is

[AIPMT-98, AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.