In a Young’s double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit width. Find the ratio of the maximum to the minimum intensity in the interference pattern
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a
2 : 1
b
1 : 4
c
3 : 1
d
4 : 1
answer is D.
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Detailed Solution
Intensity ∝ Amplitude2 Given :A1A2=13 Let say ,A1=x,A2=3x Ratio =ImaxImin=A1+A22A1−A22=(4x)2(2x)2=164=4:1
In a Young’s double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit width. Find the ratio of the maximum to the minimum intensity in the interference pattern