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What are wave length, wave number and fr...

What are wave length, wave number and frequency? Write the relationship between them. 

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Knowledge Check

  • The wave length having wave number 4000 cm^(-1) is

    A
    `2.5 mu m`
    B
    `250 mu m`
    C
    `25 mu m`
    D
    `25 nm`

  • The graph between wave number (1) and angular frequency (0) is

    A
    B
    C
    D

  • The wave-length of a moving electron

    A
    Increases with the increase of the velocity of the electron
    B
    Does not depend upon the velocity of the electron
    C
    Decreases with the increase of velocity of the electron
    D
    Is equal to zero

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    Figure shows a plot of the transverse displacement of the particle of a string at t = 0 through which a travelling wave is passing in the positive x-direction. The wave speed is 20 cm/s. Find (a) the amplitude, (b) the wavelength, (c) the wave number and (d) the frequency of the wave.

    High frequency waves are

    High frequency waves are

    The wave length of a radio wave is 1.0m. Find its frequency.

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