The wavelength of light in a medium is `lamda=lamda_0/mu` where `lamda` is the wavelength in vacuum. A beam of red light `(lamda_0=720 nm)` enters into water The wavelength in water is `lamda=lamda_0/mu=540 nm.` To a person under water does this light appear green?

The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in water? Refractive index of water 1.33.

If the velocity and wavelength of light in air is V_a and lamda_a and that in water is V_w and lamda_w then the refractive index of water is,

If lamda_v, lamda_x, and lamda_m represent the wavelengths of visible light, X-rays and microwaves respectively, then:

White light is a mixture of light of wavelengths between 400 nm and 700 nm. If this light goes through water (mu = 1.33) what are the limits of the wavelength there ?

The wavelength of sodium light in air is 589 nm. (a) Find its frquency in air. (b) Find its wavelength in water (refactive index = 1.33). (c ) find its frequency in water : (d) Find its speed in water.

A beam of light of wavelength 590 nm is focused by a converging lens of diameter 10.0 cm at a distance of 20 cm from it. find the diameter of the disc image formed.

The intensity at the maximum in Young's double slit experiment is I_0 Distance two slits is d = 5lambda where lambda is the wavelength of light used in the experiment what will be intensity in front of one of the slits on the screen placed at a distance D=10d ?

Each photon has a linear momentum h/lamda where h is the Planck's constant and lamda is the wavelength lamda is incident on a plane mirror at an angle of incidence theta . Calculate the change in the linear momentum of a photon as the beam is reflected by the mirror.

Find the thickness of a plate which will produce a change in optical path equal to half the wavelength lamda of the light passing through it normally. The refractive index of the plate is mu .

Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of refracted light? Refractive index of water is 1.33.