Question Detail

PHY 104 Diffraction and Interference of light waves Objective Question
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Question

How does a Polaroid filter change unpolarized light into polarized light?
Options
A It refracts the light, changing its direction.
B It reflects certain wavelengths, causing polarization.
C It allows light to pass through in only one orientation and blocks out all other orientations.
Correct Answer
D It converts electric field oscillations into magnetic field oscillations.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 7 explains, 'To change unpolarized light to polarized light, a material such as a Polaroid filter is used. Such a material will allow light to pass through in only one orientation and block out all other orientations.'

Hint

Consider the 'filtering' action of a Polaroid filter on the orientation of the electric field.

Question Info

Course: PHY 104
Topic: Diffraction and Interference of light waves
Type: Objective
Difficulty: Not specified
Question 532 of 947
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