The wavelength of light in vacuum is `6000 A^(@)` and in a medium it is `4000 A^(@)` The refractive index of the medium is:

The speed of light in a medium is high if the refractive index of the medium is ……. .

The wavelength of light in vacuum is lambda . The wavelength of light 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

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

The refractive index of a medium with respect to vacuum

The refractive index of a medium with respect to vacuum

The wavelength of light in air and some other medium are respectively lambda_(a) and lambda_(m) . The refractive index of medium is

The speed of light of wavelength 6000overset(@)(A) in medium A is 0.8c. If the refractive index of medium B is 1.6, then calculte the refractive index of A relative to B.