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A beam of light AO is incident on a glas...

A beam of light `AO` is incident on a glass slab `(mu=1.54)` in a direction as shown in figure. The reflected ray `OB` is passed throught a Nicol prism. On viewinf through a Nicole prism, we find rotating the prism that `(tan^(-1)1.54=57^(@))`

A

the intensity si reduced down to zero and remains zero

B

the intensity raduces down some what and aganin.

C

There is not change in intensity.

D

The intensity gradually reduces to zero and then again increases.

Text Solution

Verified by Experts

The correct Answer is:
D
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