cse • paper_2 • solid_state_electronicscse-2021-subject-08-001
X-ray spectrum — UPSC CSE 2021 Physics PYQ
Buy PYQ Solution Manual →An X-ray beam of wavelength \lambda_1 undergoes a first order Bragg reflection at a Bragg angle of 30^\circ. X-ray of wavelength 97\,\mathrm{nm} undergoes 3rd order reflection at a Bragg angle of 60^\circ. Consider that the two beams are reflected from the same set of planes. Find the value of \lambda_1.
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