JEE Advanced 2021 Full Test 2 Paper 1

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(One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and (D). ONE OR MORE THAN ONE of these four options is(are) correct.

Question : 12 of 54

Marks: +1, -0

Two point monochromatic and coherent sources of light of wavelength λ are placed on the dotted line in front of an infinite screen. The source emit waves in phase with each other. The distance between S1 and S2 is d while their distance from the screen is much larger. Then

If d is
3λ
2
, at O minima will be observed
if d is frac‌
11λ
6
, then intensity at O will be
3
4
of maximum intensity
if d is 3λ,O will be a maxima
if d is
7λ
6
, the intensity at O will be
3
4
of maximum intensity

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