Oscillations and Waves-Speed of a Wave (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 2 of 2

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Question number: 1

» Oscillations and Waves » Speed of a Wave

Appeared in Year: 2012

MCQ▾

Question

A body is executing simple harmonic motion of amplitude and period T about the equilibrium position. Large numbers of snapshots are taken at random of this body in motion. The probability of the body being found in a very small interval to is highest at,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2

» Oscillations and Waves » Speed of a Wave

Appeared in Year: 2016

MCQ▾

Question

A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 decibels at and it rises linearly with frequency to decibels at . The minimum intensity of sound that the person can hear at is –

Choices

Choice (4) Response

a.

times than that at

b.

times than that at

c.

times than that at

d.

times than that at

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