Questions
If the amplitude ratio of two sources producing interference is 3 : 5, the ratio of intensities at maxima and minima is
detailed solution
Correct option is C
a1a2=35 ∴ImaxImin=a1+a22a1−a22=(3+5)2(3−5)2=161Talk to our academic expert!
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The periodic time of rotation of a certain star is 22 days and its radius is 7108 meters. If the wavelength of light emitted by its surface be 4320 , the Doppler shift will be (1 day = 86400 sec)
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