Questions
The largest distance between the interatomic planes of a crystal is 2 x cm. The upper limit for the wavelength of X-rays which can be usefully studied with this crystal is
detailed solution
Correct option is C
Bragg's law, 2dsinθ=nλ or λ=2dsinθnFor maximum wavelength, nmin=1, (sinθ)max=1∴ λmax=2d or λmax=4×10−7cm=40 ÅTalk to our academic expert!
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ABC is an isosceles right angled triangle with the angle BAC 90o. A ray of light parallel to the base BC strikes the face AB. The refracted ray in the prism strikes the base BC. If the refractive index of the material of the prism is , find the total angle of deviation of the final emergent ray
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