Oscillations and Waves (BITSAT Physics): Questions 8 - 12 of 32

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Question number: 8

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

MCQ▾

Question

A cylindrical resonance tube, open at both ends, has a fundamental frequency f in air. If half of the length is dipped vertically in water, the fundamental frequency of the air column will be –

Choices

Choice (4) Response

a.

2f

b.

f

c.

f2

d.

3f2

Question number: 9

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

A wave frequency 100Hz is send along a string towards a fixed end. When this wave travels back, after reflection, a node is formed at a distance of 10cm from the fixed end of the string. The speeds of incident (and reflected) waves are –

Choices

Choice (4) Response

a.

20ms

b.

10ms

c.

15ms

d.

48ms

Question number: 10

» Oscillations and Waves » Wave Motion

MCQ▾

Question

The speed of a wave in a medium is 760ms . If 3600 waves are passing through a point in the medium in 2 minutes, then its wavelength is

Choices

Choice (4) Response

a.

25.3m

b.

41.5m

c.

13.8m

d.

57.2m

Question number: 11

» Oscillations and Waves » Simple Harmonic Motion » Energy

MCQ▾

Question

The kinetic energy of a particle executing S. H. M, is 16 when it is in its mean position. If the amplitude of oscillation is 25cm , and the mass of the particle is 5.12kg, then time period of the oscillation is –

Choices

Choice (4) Response

a.

2πsec

b.

π5sec

c.

20πsec

d.

5πsec

Question number: 12

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

If the displacement of a particle executing S. H. M. is given by y=0.30sin(220t+0.64) in metre, then the frequency and maximum velocity of the particle is –

Choices

Choice (4) Response

a.

35Hz,66ms

b.

58Hz,113ms

c.

45Hz,93ms

d.

36Hz,133ms

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