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When light ray travels from ...... then ...

When light ray travels from ...... then total internal reflection is possible.

A

from air to water

B

from air to glass

C

from water to glass

D

from glass to water

Text Solution

Verified by Experts

The correct Answer is:
A, D
When light ray enters rarer medium from denser medium, then it goes away from normal. Hence total internal reflection is possible.
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Knowledge Check

  • When a light wave travels from air to glass,

    A
    its wavelength decreases
    B
    its wavelength increases
    C
    there is no change in wavelength
    D
    its frequency decreases

  • When light ray travels from denser to rarer medium and if theta_1 is incidence and theta_2 is refraction angle, then .....

    A
    `theta_1 gt theta_2`
    B
    `theta_1 lt theta_2`
    C
    `theta_1=theta_2`
    D
    `theta_2 gt theta_1" or "theta_1 gt theta_2`

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