wave-optics Question 38
Question: Q. 4. Distinguish between polarized and unpolarized light. Does the intensity of polarized light emitted by a polaroid depend on its orientation ? Explain briefly.
The vibrations in a beam of polarized light make an angle of
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Solution:
Ans. If the direction of vibration of electric field vector/ plane of vibration of electric field vector, does not change with time, the light is polarized.
Whereas, if the direction of vibration of electric field vector / plane of vibration of electric field vector changes randomly in very short intervals of time / with time, the light is unpolarised.
Alternatively,
Yes, it depends upon orientation of Polaroid because electric field vibrations, those are not in the direction of axis of Polaroid, are absorbed. Hence, intensity changes.
Alternatively,
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