Question 1:
1. A phase difference due to a path-length difference is observed for
monochromatic visible light. Which phase difference requires the least
(minimum) path-length difference?
(A) The answer depends on the wavelength of the light.
(B) 180°
(C) 270°
(D) 90°
Choose correct option
Answers
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1
Explanation:
(C) 270 degree
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