The distance between a convex lens and a plane mirror is 10 cm. The parallel rays incident on the convex lens after reflection from the mirror forms image at the potical centre of the lens. Focal length of lens will be

The distance between a convex lens and a plane mirror is 10 cm. The parallel rays incident on the convex lens after reflection from the mirror form image at the optical centre of the lens. Focal length of lens will be

The distance between a convex lens and a plane mirror is 10 cm. The parallel rays incident on the convex lens after reflection from the mirror form image at the optical centre of the lens. Focal length of lens will be

The distance between a convex lens and a plane mirror is 15 cm. The parallel rays incident on the convex lens, after reflection from the mirror, form image at the optical centre of the lens. Draw the ray-diagram and find out the focal length of the lens.

A convex lens and a plane mirror are kept at a distance of 10 cm as shown in the diagram alongside. Parallel rays incident on the convex lens after reflection from the mirror from an image at the optical cetre. Complete the ray diagram and find out the focal length of the lens.

An object is placed at a distance of 40 cm from a convex lens of focal length 20cm. On the far side of the lens, a concave mirror of focal length 10cm is placed such that the distance of the object from the concave mirror is 100 cm. Then the final image which is formed after refraction from the lens, reflection from the mirror and again refraction from the lens, will be

An object is placed at a distance of 40 cm from a convex lens of focal length 20cm. On the far side of the lens, a concave mirror of focal length 10cm is placed such that the distance of the object from the concave mirror is 100 cm. Then the final image which is formed after refraction from the lens, reflection from the mirror and again refraction from the lens, will be

A convex lens and a convex mirror are separated by a distance of 10 cm such that the reflecting surface of the mirror faces the lens. The image of an object placed in front of the convex. Lens at a distance of 20 cm is found to coincide with the object. If the focal length of the convex lens is 15 cm, determine the focal length of the mierror.