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JEE Main Physics Class 12 Wave Optics Part 1 Questions
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© examsnet.com
Question : 14
Total: 100
An unpolarized light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the analyzer is measured as 100 Lumens. Now, if the analyzer is rotated around the horizontal axis (direction of light) by
30
circ
in clockwise direction, the intensity of emerging light will be Lumens.
[24feb2021shift1]
Your Answer:
Validate
Solution:
Assuming initially axis of polarizer and analyzer are parallel
When the angle between axis of polarizer and analyzer is
30
∘
.
Now emerging intensity
=
I
0
2
cos
2
30
∘
=
100
(
√
3
2
)
2
=
100
×
3
4
=
75
© examsnet.com
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