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An optically denser medium is that in wh...

An optically denser medium is that in which speed of light is more than that in air or vaccum.

Text Solution

Verified by Experts

The correct Answer is:
False
Speed of light in any material medium can never be more than the speed of light in vaccum (or air).
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What is an optically denser medium?

The medium in which speed of light is less is called optically_____medium and the medium in which speed of light is more is called optically____medium.

Knowledge Check

  • Assertion (A) : Glass is optically denser than water. Reason (R) : An optically denser medium is that in which speed of light is comparatively less.

    A
    Both (A) and (R) are true and (R) is correct explanation of the assertion.
    B
    Both (A) and (R) are true but (R) is not the correct explanation of the assertion.
    C
    (A) is true but (R) is false.
    D
    (A) is false but (R) is true.

  • In vaccum ,the speed of light

    A
    depends on ts wavelength
    B
    depends on its frequency
    C
    depends on its intensity
    D
    heither depends on its wavelength ,frequency nor intenisity .

  • When light rays travels from an optically rarer medium to an optically denser medium, the speed of light decreases because of change in which of the following ?

    A
    Wavelength
    B
    Frequency
    C
    Amplitude
    D
    Phase

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    Read the statements given below and identify the concepts explained in them. When the light source is kept in an optically denser medium, name the incident angle for which the refracting ray grazes along the surface of the medium.

    In which medium the speed of light is maximum?

    On entering a denser medium, the wavelength of light

    The critical angle of light from medium A to medium B is theta . The speed of light in medium A is v. the speed of light in medium B is

    Assertion : Corpuscular theory of light cannot explain change in velocity of light when it changes medium. Reason : According to corpuscular theory of light, speed of light is more in denser medium than in rarer medium.

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