plz ANYONE WHO CAN SOLVE THIS
Band width for red light of wavelength 6400 A is 0.32 mm. If red light is replaced by blue light of wavelength 4800 A, then the change in bandwidth will be (A) 8 x 10 m (B) 8 x 10 m (C) 4x 10m (D) 4x 10 m
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correct answer is B , hope this helps you
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