Monochromatic light of wavelength `lambda_1` travelling in medium of refractive index `n_1` enters a denser medium of refractive index `n_2`. The wavelength in the second medium isA. (a) `lambda_1(n_1/n_2)`B. (b) `lambda(n_2)/(n_1)`C. (c) `lambda_1`D. (d) `lambda((n_2-n_1)/(n_1))`

Monochromatic light of wavelength `lambda_1` travelling in medium of r

1.	Monochromatic light of wavelength `lambda_1` travelling in medium of refractive index `n_1` enters a denser medium of refractive index `n_2`. The wavelength in the second medium isA. (a) `lambda_1(n_1/n_2)`B. (b) `lambda(n_2)/(n_1)`C. (c) `lambda_1`D. (d) `lambda((n_2-n_1)/(n_1))`
Answer» Correct Answer - A `n_1=(c)/(v_1)=(vlambda)/(vlambda_1)=(lambda)/(lambda_1)` `n_2=(c)/(v_2)=(vlambda)/(vlambda_2)=(lambda)/(lambda_2)` Now, `n_1/n_2=(lambda_2)/(lambda_1)` or `lambda_2=(n_1/n_2)lambda_1`

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Monochromatic light of wavelength `lambda_1` travelling in medium of refractive index `n_1` enters a denser medium of refractive index `n_2`. The wavelength in the second medium isA. (a) `lambda_1(n_1/n_2)`B. (b) `lambda(n_2)/(n_1)`C. (c) `lambda_1`D. (d) `lambda((n_2-n_1)/(n_1))`

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