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For total internal reflection, light mus...

For total internal reflection, light must travel

A

from rarer to denser medium

B

from denser to rarer medium

C

in air only

D

in water only

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • Total internal reflection of a light ray travelling from denser medium to rare medium occurs only when angle of incidence is

    A
    `45^@`
    B
    `90^@`
    C
    acute
    D
    more than a certain value

  • Light travels from a medium of refractive index mu_(1) to another of refractive index mu_(2)(mu_(1) gt mu_(2)). For total internal reflection of light, which is NOT true?

    A
    Light can travel from medium of refractive index `mu_(1) to mu_(2)`
    B
    Angel of incidence must be greater than the critical angle
    C
    There is no refraction of light
    D
    Light can travel from the medium of refractive index `mu_(2) to mu_(1)`

  • Light travels from a medium of refractive index H, to another of refractive index mu_(2) (mu_1 gt mu_(2)). For total internal reflection of light, which is NOT true?

    A
    Light can travel from medium of refractive index Hi to `l_2`.
    B
    Angle of incidence must be greater than the critical angle.
    C
    There is no refraction of light.
    D
    Light can travel from the medium of refractive index `mu_(1)" to "mu_(1)`.

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    Name the devices in which total internal reflection of light is used.

    Name the devies in which total internal reflection of light is used.

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