A convex lens of focal length 20 cm is placed in front of a convex mirror of focal length 15 cm at a distance of 5 cm. An object of length 2 cm is placed perpendicular to the common axis at a distance of 20 cm from the lens

A convex lens of focal length 15 cm is placed in front of a convex mirror. Both are coaxial and the lens is 5 cm from the apex of the mirror. When an object is placed on the axis at a distance of 20 cm from the lens, its is found that image coincides with the object. Calculate the radius of curvature of mirror. [55cm]

An object of height 3 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the nature of the image?

An object of height 3 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the height of the image ?

An object of height 5 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the height of the image (in cm)?

A concave lens of focal length 20 cm placed in contact with ah plane mirror acts as a convex mirror of focal length

An object of height 5 cm is placed in front of a convex lens of focal length 20 mc at a distance of 30 cm. What is the height of the image (in cm)?

A convex lens of focal length 10.0 cm is placed in contact with a convex lens of 15.0 cm focal length. What is the focal length of the combination ?

An object of height 3 cm is placed in front of a convex lens of focal length 20 cm at a distance of 30 cm. What is the distance to the image formed ?

There is a convex lens of focal length 20 cm. An object of height 3 cm is placed perpendicular to principal axis of lens at a distance 10 cm from the lens. Find the size of image.