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A laser is a coherent source because it ...

A laser is a coherent source because it contains

A

many wavelengths

B

uncoordinated wave of a particular wavelength

C

coordinated wave of many wavelengths

D

coordinated waves of a particular wavelength

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Knowledge Check

  • Laser is/ are

    A
    Highly coherent
    B
    Highly monochromatic
    C
    Highly directional
    D
    All of these

  • In Fresnel’s biprism, coherent sources are obtained by :

    A
    division of wavefront
    B
    division of amplitude
    C
    division of wavelength
    D
    none of the above

  • Two coherent source of light can be obtained by

    A
    Two different lamps
    B
    Two different lamps of different power
    C
    Two different lamps of same power
    D
    By dividing a wavefront

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