Form the image in case an object is moved from infinity to the concave mirror.

An object is placed exactly midway between a convex and concave mirror each of focal length 15 cm.The two mirror are placed 60 cm apart and the two mirrors face each other.Find the nature and position of the image formed by reflection first at convex and then at the concave mirror.

Find the position of an object,which when placed in front of a concave mirror of focal length 20 cm,produces a virtual image,which is twice the size of the object.

Where will the real and inverted image of an object placed at the centre of curvature of a concave mirror will be formed?

A concave mirror of focal length 20 cm and a convex mirror of focal length 15 cm are placed 50 cm apart,such that the two mirrors face each other .An object is placed exactly midway betwen them.Find teh nature and position of the image formed by reflection first at the concave mirror and then at the convex mirror.

The size of the image of an object,which is at infinity, as formed by a convex lens of focal length 30 cm is 2 cm. If a concave lens of focal length 20 cm is placed between the convex lens and the image at a distance of 26 cm from the convex lens, calculate the new size of the image

When is virtual and magnified image of an object formed in a concave mirror? Show with the help of a diagram

Describe with the help of diagram the natrue, size and position of the image formed when and object placed at centre of curvature of a concave mirror.

With a concave mirror,the magnification is found to be four times as large,when the object was 25 cm fom the mirror as it was with the object at 40 cm from the mirror,the image being real in both the cases.Find the focal length of teh concave miror.

Establish the relation between object distance, image distance and radius of curvature for a concave mirror.