Oscillations and Waves-Speed of a Wave (KVPY 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 Equation and period T about the equilibrium position Equation . 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 Equation to Equation is highest at,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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 Equation and it rises linearly with frequency to Equation decibels at Equation . The minimum intensity of sound that the person can hear at Equation is –

Choices

Choice (4) Response

a.

Equation times than that at Equation

b.

Equation times than that at Equation

c.

Equation times than that at Equation

d.

Equation times than that at Equation

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