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Speed (v), wavelength (lambda) and the f...

Speed (v), wavelength (`lambda`) and the frequency (f) of sound are related as

A

`lambda=v xx f`

B

`v=f lambda`

C

`f=v lambda`

D

none

Text Solution

Verified by Experts

The correct Answer is:
B
`v=f lambda`
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Knowledge Check

  • The frequency of a sound wave is related to its

    A
    Amplitude
    B
    Loudness
    C
    Pitch
    D
    Quality

  • A transverse sinusoidal wave of amplitude a, wavelength lambda and frequency f is travelling on a stretched string. The maximum speed of any point in the string is v//10 , where v is the speed of propagation if the wave. If a = 10^(-3)m and v = 10ms^(-1) , then lanbda and f are given by

    A
    (a) `lambda = 2pi xx 10^(-2)m`
    B
    (b) `lambda = 10^(-3)m`
    C
    ( c ) `f = 10^(3) Hz//(2pi)`
    D
    (d) `f = 10^(4)Hz`

  • A monochromatic beam of light of wavelength lambda and frequency v goes from vacum to a medium of refractive index n. How do the wavelength and frequency of light change ?

    A
    wavelength becomes `(lambda)/(n)` and frequency nv
    B
    wavelength becomes `n lambda` and frequency becomes `(v)/(n)`
    C
    wavelength and frequency do not change
    D
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