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In vacuum. The speed of light...

In vacuum. The speed of light

A

depends on its wavelength

B

depend on its frequency

C

depend on its intensity

D

d neither depend on its wavelength, frequency nor
intensity

Text Solution

Verified by Experts

The correct Answer is:
D
In vacuum, the speed of light neither depend on its
wavelength, frequency nor intensity. In vacuum, speed of light is constant i.e., `3xx10^(8)m//s.`
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Knowledge Check

  • Assertion (A): Sunlight reaches us without dispersion in the form of white light and not as its components. Reason (R): Dispersion takes place due to variation of refractive index for different wavelength but in vacuum the speed of light is independent of wavelength and hence vacuum is a non dispersive medium.

    A
    Both A and R are true and R is the correct explanation of A.
    B
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    C
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    D
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  • If mu_o represents the magnetic permeability constant in free space and Sigma_o is the permitivity in vacuum, and C the speed of light in vacuum , then

    A
    `Sigma_o=sqrt(mu_oC)`
    B
    `Sigma_o^(-2)=mu_oC^(-1)`
    C
    `Sigma_o^(-1)=mu_o^(-1)C^(-2)`
    D
    `Sigma_o=mu_o^(-1) C^(-2)`

  • For a given medium , the speed of light and the polarising angle are V and i_p respectively. Then from Brewster's law [C is the speed of light in vacuum ]

    A
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    C
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