The value of the Bewster angle for a trnsparent medium is different for lights of different colours.

How many signals can be made by hoisting 5 flags of different colours ?

Red light differes from blue light in its

In what respect does heat radiation different from light?

Is the angle of minimum deviation produced by a prism different for different wavelengths/colours?

The value of the critial angle is least for which of the following colours of light?

The critical angle between a given trasparent medium and air is denoted by C.A ray of light in air medium enters this transprent meidum at an angle of incidence equal to polarising angle p.Deduce a relation for the angle of refraction in terms of C.

The following table gives the value of theangle of minimum deviation for different values of theangle of incidence for a triangular prism. . For what value of the angle of incidence,is the angle of mergence likely to be equal to the angle of incidence?

State Brewster's law. Obtain the relation between the Brewster angle and refractive index for medium which produces Plane Polarized light.

Each of the six squares in the strip shown in the fig., is to be coloured with anyone of ten different colours so that no two adjacent squares have the same colour. Find the number of ways of colouring the strip.

What is an unpolarised ligth ?Explain with the help of a suitable ray diagram,how an unpolarised light can be polarised by reflection from a transparent medium.Write the expression for Brewster angle in terms of the refractive index of the denser medium.