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 through a Nicol prism on viewing through a Nicole prism, we find on rotating the prism that [CPMT 1986]

The intensity is reduced down to zero and remains zero

The intensity reduces down somewhat and rises again

There is no change in intensity

The intensity gradually reduces to zero and then again increases

A beam of light AO is incident on a glass slab \[(\mu =1.54)\] in a di

1.	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 through a Nicol prism on viewing through a Nicole prism, we find on rotating the prism that [CPMT 1986]
A.	The intensity is reduced down to zero and remains zero
B.	The intensity reduces down somewhat and rises again
C.	There is no change in intensity
D.	The intensity gradually reduces to zero and then again increases
Answer» E.