A planar wave front of width `sqrt 2` mm is incident at an angle `60^@` on a plane surface. If angle of refraction is `45^@` find the width of refracted wave front.

A ray of light incidents on a refracting surface at 30^(@) with the surface . If the angle of refraction is 45^(@) refractive index of the medium is

A plane wavefront propagating from a rarer into a denser medium is incident at an angle of incidence i on a refracting surface. Draw a diagram showing incident wavefront and refracted wavefront . Hence verify Snell's laws of refraction.

A plane wave front of light is incident on a plane mirror. Intensity is maximum at P when

A plane wave of sound travelling in air is incident upon a plane water surface. The angle of incidence is 60^@ . Assuming snell's law to be valid for sound waves, it follows that the sound wave will be refracted into water away from the normal.

A plane wavefront is incident at an angle of 37^(@) with horizontal a boundary of refractive medium from air (mu=1) to a medium of refractive index mu=3/2 . Find the angle of refracted wavefront with horizontal

A ray of light is incident at an angle of 60^(@) on one face of a prism which has refracting angle of 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. If the refractive index of the material of the prism is mu=sqrt(a) , find the value of a .

A plane weve of sound travelling in air is incident upon a plane water surface. The angle of incidence is 60^(@) . If velocity of sound in air and water are 330 m//s and 1400 m//s , then the wave undergoes

A ray of light is incident normally on a plane glass slab. What will be (i) the angle of refraction, and (ii) the angle of deviation for the ray ?

Draw a diagram to show refraction of a plane wave front incident in a convex lens and hence draw the refracted wave front

A plane wavefront incident on a reflecting surface at and angle of 30^(@) with vertical. Find the angle (acute) of reflected wave with vertical.