An object of size 3 cm is placed 14 cm in front of a concave lens of focal length 21 cm. describe the image produed by the lens.

An object of size 3.0cm is placed 14cm in front of a concave lens of focal length 21cm. Describe the image produced by the lens. What happens if the object is moved further away from the lens?

An object of size 10 cm is placed at distance of 20 cm in front of aconcave lens of focal length 20 cm. Find the size and nature of image. Also find distance of image from the lens

An object of size 5 cm is placed at distance of 25 cm in front of a convex lens of focal length 20 cm. Find the size and nature of image and its distance from the lens.

An object of size 5 cm is placed at distance 25 cm in front of a concave mirror of focal length 20 cm. Find the size and nature of image formed ? Also find distance of image from the mirror.

An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should the screen be placed, so that a sharp focussed image can be obtained? Find the size and the nature of the image

An object of 3 cm length is placed at 10 cm from the ple of a concave irror of focal length 9 cm.Find the size and position of the image.