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JEEMAIN and NEET
>>
Physics
>>
Class12
>>
Ray Optics and Optical Instruments
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Q)
The figure shows total internal reflection taking place in three materials of refractive indices
n
1
,
n
2
and
n
3
where
θ
c
1
,
θ
c
2
,
θ
c
3
are critical angles in the respective mediums. Then
(
a
)
n
1
>
n
2
>
n
3
(
b
)
n
3
<
n
1
<
n
2
(
c
)
n
1
<
n
2
<
n
3
(
d
)
n
2
<
n
1
<
n
3
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