A wave has velocity u in medium P and velocity 2 u in medium Q . If the wave is incident in medium P at an angle of `30^(@)` then the angle of refraction will be

A sound wave travelling with a velocity V in a medium A reaches a point on the interface of medium A and medium B . If the velocity in the medium B be 2 V , then the angle of incidence for total internal reflection of the wave will be greater than:

The ratio of sine of angle of incidence in one medium to sine of angle of refraction in other medium is

A ray of light is refracted from medium 1 to medium 2. Show that the ratio of the sine of the angle of incidence and the sine of the angle of refraction is equal to the ratio of velocity of light in medium 1 and that in medium 2.

Velocity of electromagnetic waves in a medium is ..

Critical angle is that angle of incidence in the denser medium for which the angle of refraction in rarer medium is

A ray of light in air is incident at an angle of 45^(@) on the surface of separation of a medium. It is refracted in the medium at an angle of 30^(@) . What is the velocity of light in that medium ?

A ray o light is incident on the surface of separation of a medium with the velocity of igth at an angle 45^@ and is refracted in the medium at an angle 30^@ .Velocty of light in the medium will be:(Veloctiy of light= 3xx10^8 m s^(-1) ).