A plane mirror of circular shape with radius`r=20cm`is fixed to the ceiling .A bulb is to be placed on the axis of the mirror.A circular area fo radius`R=1m`on the floor is to be illuminated after reflection of fight from the mirror.Teh height of the room is`3m`What is maximum distance fromt he center of the mirror and the bulb so that the required area is illuminated?

A plane mirror of circular shape with radius r=20cm is fixed to the ceiling .A bulb is to be placed on the axis of the mirror.A circular area of radius R=1m on the floor is to be illuminated after reflection of light from the mirror. The height of the room is 3m What is maximum distance from the center of the mirror and the bulb so that the required area is illuminated?

A plane mirror of circular shape with radius r=20cm is fixed to the ceiling .A bulb is to be placed on the axis of the mirror.A circular area of radius R=1m on the floor is to be illuminated after reflection of light from the mirror. The height of the room is 3m What is maximum distance from the center of the mirror and the bulb so that the required area is illuminated?

A small plane mirror placed at the centre of a spherical screen of radius R. A beam of light is falling on the mirror, If the mirror makes n revolution per second, the speed of light on the screen after reflection from the mirror will be

A light ray travelling parallel to the principal axis of a concave mirror strikes the mirror at angle of incidence theta . If radius of curvature is R , then after reflection, the ray meets the principal axis at a distance d from the centre of curvature then d is

An object kept on the principle axis is moving in the same direction as that of mirror is 10m//s and 40//13m//s . Radius of the curvature of the mirror is 20 cm. What should be the distance of object from the mirror at this instant so that the image is stationary?

An object kept on the principle axis is moving in the same direction as that of mirror is 10m//s and 40//13m//s . Radius of the curvature of the mirror is 20 cm. What should be the distance of object from the mirror at this instant so that the image is stationary?

What will be the height of image when an object of 2 mm is placed on the axis of a convex mirror at a distance 20 cm of radius of curvature 40 cm