The wavelength of a light in a liquid of R.I. 1.4 is `400 mm`. Calculate the wavelength of this light in a glass of R.L 1.6.

The wavelength of a monochromatic light in a liquid of refractive index 1.4, is 400 nm. Calculate the wavelength of this light in a glass of refractive index 1.6

The wavelength of blue light is 4800 overset@A , calculate the frequency and wave number of light.

The wave number of a beam of light is 400 cm^(-1). What is the wavelength of light in nanometres ?

The frequency of the strong yellow line in the spectrum of sodium is 5.09xx10^14 sec^(-1) . Calculate the wavelength of this light.