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When a wave is reflected from a denser m...

When a wave is reflected from a denser medium, the change in phase is:

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When a wave undergoes reflection from a denser medium, then a phase change of `pi` takes place.
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Knowledge Check

  • When a wave passes from one medium to another, there is change in

    A
    frequency and velocity
    B
    frequency and wavelength
    C
    wavelength and velocity
    D
    frequency, wavelength and velocity.

  • What happens when a sound wave is reflected -from the boundary of a denser medium ? The compression of the incident wave is returned as:

    A
    crest
    B
    trough
    C
    compression
    D
    rarefaction.

  • When light enters from rarer to denser medium, it bends :

    A
    Away from normal
    B
    Towards the normal
    C
    Remains straight
    D
    None of above.

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    What is an unpolarised ligth ?Explain with the help of a suitable ray diagram,how an unpolarised light can be polarised by reflection from a transparent medium.Write the expression for Brewster angle in terms of the refractive index of the denser medium.

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    When light passes from one medium to another medium, which one of these quantities, remains unchanged.

    When a light from a coherent source moves from a denser medium to a rarer medium, then

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