The Young's double slit experiment is performed with blue light and green light of wavelength 4360˙A and 5460˙A a respectively. If X is the distance of 4th maxima, from the central one, then:
A
Xblue=Xgreen
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B
Xblue>Xgreen
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C
Xblue<Xgreen
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D
XblueXgreen=54604360
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Solution
The correct option is CXblue<Xgreen Width of bands ∝λ λb<λg∴ bands become narrower as wavelength decreases. Xblue=4D×λbd,Xgreen=4Dλgd XblueXgreen=λbλg=43605460,Xblue<Xgreen