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#1 2017-11-02 06:13:35

shakeel123
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If the thickness of the film and angle of incidence are such that...

ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 Physics Physical Optics 2

Question:
If the thickness of the film and angle of incidence are such that two reflected waves cancel each other the film will look

Option A):
None of these
Option B):
May be partly bright
Option C):
Bright
Option D):
Dark

Correct Answer is Option D):
Dark


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2017-11-02 06:13:35

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