The focus of a parabolic mirror is at a  distance of 6 cm from its vertex. If the mirror is 20 cm deep, find the distance LM.

The focus of a parabolic mirror as shown in figure is at a distance of 5 cm from its vertex. If the mirror is 45 cm deep, find the distance AB

The focus of a parabolic mirror as shown in the figure alongside is at a distance of 6cm from its vertex. If the mirror is 20cm deep, find the distance BC.

A point light source is kept in front of a convex mirror at a distance of 40 cm. The focal length of the mirror is 40 cm. Find the position of image.

An object is placed in front of a concave mirror at a distance of 7.5 cm from it. If the real image is formed at a distance of 30 cm from the mirror, find the focal length of the mirror. What would be the focal length if the image is virtual.

An object of height 1cm is kept perpendicular to the principle axis of a convex mirror of radius of curvature 20cm . IF the distance of the object form the mirror is 20 cm then the distance (in cm ) between heads of the image and the object will be:

An object is present on the principal axis of a concave mirror at a distance 30cm from it. Focal length of mirror is 20cm. Q. If object starts moving with 2cms^(-1) perpendicular to principal axis above the principal axis then,

The image formed by a concave mirror is twice the size of the object. The focal length of the mirror is 20 cm. The distance of the object from the mirror is//are

An object is present on the principal axis of a concave mirror at a distance 30cm from it. Focal length of mirror is 20cm. Q. Image formed by mirror is

A concave mirror forms an image of the sun at a distance of 12 cm from it.

A flat glass slab of thickness 6 cm and index 1.5 is placed in front of a plane mirror. An observer is standing behind the glass slab and looking at the mirror. The actual distance of the observer from the mirror is 50 cm. The distance of his image from himself, as seen by the observer is