Light of wavelength `7200Å` in air has a wavelength in glass `(mu=1.5)` equal to:

Red light of wavelength 6400 Å in air has a wavelength of 4000 Å in glass. If the wavelength of violet light in air is 4400 Å, then the wavelength in glass is

Red light of wavelength 6400 Å in air has a wavelength of 4000 Å in glass. If the wavelength of violet light in air is 4400 Å, then the wavelength in glass is

Red light of wavelength 6400 Å in air has a wavelength of 4000 Å in glass. If the wavelength of violet light in air is 4400 Å, then the wavelength in glass is

Light of wavelength 5000 Å is travelling in air. A thin glass plate (mu=1.5) of thickness 1 mm is placed in the path of light. The change in phase of light is

A beam of monochromatic blue light of wavelength 4200 Å in air travels in water (mu = 4//3) . It's wavelengths in water will be

The diamond has refractive index of 2.4 for sodium light of wavelength 5893 Å in air. The speed and wavelength of this light in diamond are