In air the wavelength from a given source is found to be $6.0 imes 10^{-5} \mathrm{~cm}$. What wil

Question

In air the wavelength from a given source is found to be $6.0 	imes 10^{-5} \mathrm{~cm}$. What will be its wavelength in water of refractive index $\frac{4}{3}$\

Professor PC Thomas Classes · Answer

$\quad \mathrm{n}=\frac{\mathrm{C}_{\mathrm{a}}}{\mathrm{C}_{\mathrm{m}}}=\frac{\mathrm{f} \lambda_{\mathrm{a}}}{\mathrm{f} \lambda_{\mathrm{m}}}$\ $\mathrm{n}=\frac{\lambda_{\mathrm{a}}}{\lambda_{\mathrm{m}}}$\ Substitute & get $\lambda_{\mathrm{m}}$.\