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A ray of monochromatic light is incident...

A ray of monochromatic light is incident on the plane surface of separation between two media x and y with angle of incidence `i` in the medium x and angle of refraction r in the medium y. The graph shows the relation between sin `i` and sin `r`.

A

The speed of light in the medium y is `sqrt3` times than in mediun x

B

The speed of light in the medium y is `1/sqrt3` times than in medium x

C

The total internal reflection can take place when the incidence is in x

D

The total internal reflection can take place when the incidence is in y

Text Solution

Verified by Experts

The correct Answer is:
B, D
`(sini_1)/(sini_2)=v_1/v_2`
`:. Sinr/sini=slope=1/sqrt3=(v_y)/(v_x)`
`:. v_y=v_x/sqrt3`
Speed of light in medium-y is less. So, it is denser.
TIR takes place when ray of travels from denser to
rarer medium.
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