Questions
Ratio of amplitude of interfering waves is 3 : 4. Now ratio of their intensities will be
a
16:9
b
49:1
c
9:16
d
None of these
detailed solution
Correct option is C
I∝a2 ⇒I1I2=(a1a2)2=(34)2=916Talk to our academic expert!
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A light of wavelength 5890 Å falls normally on a thin air film. The minimum thickness of the film such that the film appears dark in reflected light
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