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Light of a certain wavelength has a wave number `barv` in vacum. Its wave number in a medium of refractive index n isA. `n/v`B. `(1)/(n barv)`C. `(barv)/(n)`D. `n barv` |
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Answer» Correct Answer - D `n barv` `bar(lamda_(a))=barv,barlamda_(m)= ?, mu =n` `m =(lamda_(a))/(lamda_(m))=(bar(lamda_(m)))/(lamda_(m))=(bar(lamda_(m)))/(barv)` `bar(lamda_(m)) =m barv` `= n barv. ` |
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