Light of wavelength 1 5 m incident on a material with...

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Light of wavelength 1.5 μm incident on a material with a characteristic Raman frequency of 20 × 10¹² Hz results in a Stokes-shifted line of wavelength
[Given : c = 3 × 10⁸ m/s]

A. 1.47 μm

B. 1.57 μm

C. 1.67 μm

D. 1.77 μm

Answer: Option C

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