Optics Question 549
Question: A polaroid is placed at 45o to an incoming light of intensity $ I _{0} $ . Now the intensity of light passing through polaroid after polarization would be
[CPMT 1995]
Options:
A) $ I _{0} $
B) $ I _{0}/2 $
C) $ I _{0}/4 $
D) Zero
Show Answer
Answer:
Correct Answer: B
Solution:
$ I=I _{0}{{\cos }^{2}}\theta $ = I0 cos2 45 $ =\frac{I _{0}}{2} $
