The ratio of resolving powers of an optical microscope for two wavelengths $\lambda_1=4000 \AA$ and

Question

The ratio of resolving powers of an optical microscope for two wavelengths $\lambda_1=4000 \AA$ and $\lambda_2=6000 \AA$ is

Professor PC Thomas Classes · Answer

Resolving power $RP \propto \frac{1}{\lambda}$. $\frac{RP_1}{RP_2} = \frac{\lambda_2}{\lambda_1} = \frac{6000}{4000} = \frac{3}{2}$.