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An unpolarised beam of intensity I₀ falls on a polaroid. The intensity of the emergent light is
Options
(a) I₀/4
(b) zero
(c) I₀/2
(d) I₀
Correct Answer:
I₀/2
Explanation:
When unpolarised beam of light of intensity I₀ passes through a polaroid, the intensity of the emergent light is (I₀ / 2).
Related Questions: - The number of photons of wavelength of 540 nm emitted per second by an electric bulb
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of photons of wavelength of 540 nm emitted per second by an electric bulb
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- The displacement of a particle along the x-axis is given by x = a sin² ?t
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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