The coefficient of restitution for a body is `e=(1)/(3)`. At what angle the body must be incident on a perfectly hard plane so that the angle between the direction before and after the impact be at right angles:

A ray of light is incident at an angle of 35^@ on a plane mirror. What is the angle between the incident and the reflected rays ?

What should be the angle between the direction of motion of a body so that the work done is zero ?

IF e is the coefficient of restitution then which one of the following gives the condition for perfectly elastic bodies ?

A ray of light incident on a plane mirror at an angle theta . If the angle between the incident and reflected rays is 80^@ , what is the value of theta ?

If the angle between incident ray and reflected ray is 120^(@) , what is the angle of incidence ?

The coefficient of restitution between a snooker ball and the side cushion is 1/3 . If the ball hits the cushion and then rebounds at right angles to its original direction, show that the angles made with the side cushion by the direction of motion before and after impact are 60^@ and 30^@ respectively.

The coefficient of restitution between a snooker ball and the side cushion is 1/3 . If the ball hits the cushion and then rebounds at right angles to its original direction, show that the angles made with the side cushion by the direction of motion before and after impact are 60^@ and 30^@ respectively.

Practice Problems : What will be the angle between the incident ray and reflected ray , if the angle between the reflected ray and the plane mirror is 32⁰ ?