Light of a certain wavelength has a wave number `barv` in vacum. Its wave number in a medium of refractive index n is

The wavelength of a monochromatic light in vacuum is 4000 Å. It's wave number in glass of refractive index 1.6 is

If the wavelength of light in vacuum be lambda , the wavelength in a medium of refractive index n will be

If the wavelength of light in vacuum be lambda , the wavelength in a medium of refractive index n will be

The wavelength of light in vacuum is lambda . The wavelength of light in a medium of refractive index n will be

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 is

Light of wavelength lambda_(1) enters a medium with refractive index n_(2) from a medium with refractive index n_(1) . What is the wavelength of light in second medium ?