Question

Which expression gives the wavelength of light in medium 2?

Options

• \[\lambda_2=\frac{\nu}{v_2}\]

• \[\lambda_2=\frac{v_2}{\nu}\]

• \[\lambda_2=v_2\nu\]

• \[\lambda_2=\frac{v_1}{\nu}\]

Answer 1

Wavelength is speed divided by frequency. In medium 2, the speed is \[v_2\], giving \[\lambda_2=\frac{v_2}{\nu}\].