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Assertion : The speed of light in a ra...

Assertion : The speed of light in a rarer medium is greater than that in a denser medium
Reason : One light year equals to `9.5 × 10^(12) km`

A

If both assertion and reason are true and the reason is the correct explanation of the assertion

B

If both assertion and reason are true but reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If the assertion and reason both are false

Text Solution

Verified by Experts

The correct Answer is:
b
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Knowledge Check

  • When a light ray from a rarer medium is refracted into a denser medium, its

    A
    Speed increases, wavelength increases
    B
    Speed decreases, wavelength increases
    C
    Speed increases, wavelength decreases
    D
    Speed decreases, wavelength decreases

  • Bending of light rays in denser medium is termed as:

    A
    Reflection
    B
    Dispersion
    C
    Refraction
    D
    Deflection

  • Bending of light rays in denser medium is termed as:

    A
    Reflection
    B
    Dispersion
    C
    Refraction
    D
    Deflection

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    When a ray of light moves from a rarer medium to a denser medium , the ray bends away from the normal.

    How do energy and speed of the light wave change when it travels from a rarer to denser medium?

    On entering a denser medium, the wavelength of light

    When light travels from a rarer medium to a denser medium, it ________

    When a ray of light passes from a rarer medium to a denser medium, the angle of refraction is ……….. .

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