Refraction

A light ray strikes water with an angle of 40 degrees. What should be the angle for the ray when it strikes glass, if the refraction angle is to be the same?The answer is 52 degrees

A ray of light strikes a side of lucite ( = 1.50) prism at 40° as shown below. Find the angle that the light leaves the prism.The prism is a isosceles with a degree of 70 at the top.

The famous Chinese magician Foo Ling Yu performs a classic magic trick using a concave mirror with a focal length of 1.6 m. Foo uses the mirror to produce an image of a light bulb that is the same... more

It is said that blue color of our sky is due to its shorter wavelength and it is scattered more than red but violet has the shortest wavelength then why isn't our sky violet.

A ray of light traveling through air (refractive index exactly 1.0003) strikes thesurface of a transparent solid (refractive index exactly 2.5) at an incident angle ofexactly 0.7 radians. What is... more

A ray of the light incident on the slab of transparent material is partly reflected from the surface and partly refracted into the slab . The reflected rays are mutually perpendicular .The incident... more

A converging glass lens (n = 1.52) has a focal length of 40 cm in air. Find its focal length when it is immersed in water, which has an index of refraction: nw = 1.33.

The index of refraction of glass is 1.5. Find the speed of light in glass, the angle of refraction in glass, if the light is incident from water at an angle of 40°, the critical angle of incidence... more

The index of refraction of glass is 1.5. Find the speed of light in glass, the angle of refraction in glass, if the light is incident from water at an angle of 40°, the critical angle of incidence... more

refraction occurs when   a.  a wave strikes and is re-emitted from an object b.  there is a difference in the speed waves   c.  a wave bends around a barrier d.  the crest of one wave overlaps... more