What is reflected ray?

What do you mean by polarisation by reflection?

What is the relation between the angle of incidence and the angle of reflection?

"The difference between the Gauss's law of magnetism and that for electrostatics is a reflection of a important fact of electromagnetism". Discuss in brief.

If the angle of elevation of a cloud from a point h metre above the lake is alpha and the angle of depression of its reflection in the lake is beta , prove that the height of the cloud above the lake is (h(tan beta+tan alpha))/(tan beta- tan alpha)

Establish Brewster's Law regarding polarisation of light by reflection.

The angle between an incident ray and the mirror is 40°. what is the angle of reflection?

Draw the ray diagram to show the reflection by a plane reflecting surface.

Explain reflection of light on the basis of Huygen's theory.

Give two practical applications of reflection of sound waves.