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Physics
The refraction through the prisims are as shown .Pick out the WRONG statement from the following .Path of the light ray in
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Q. The refraction through the prisims are as shown .Pick out the WRONG statement from the following .Path of the light ray in
KCET
KCET 2013
Ray Optics and Optical Instruments
A
$a$ is correct if $n_2>n_1$ and $ n_2>n_3$
39%
B
$b$ is correct if $n_1=n_2$ and $n_2>n_3$
37%
C
$c$ is correct if $n_2$ < $n_1$ and $n_2$ = $n_3$
24%
D
$d$ is correct if $n_1>n_2$ and $n_2 < n_3$
39%
Solution:
Since at the second surface light ray grazes along the surface of prism so, $n_{2}>n_{1}$
At first surface, light suffers refraction,
So, $n_{2} > n_{3}$
