An object is placed at a distance of 50cm from a concave lens of focal length 20cm. Find the nature and position of the image.

An object is placed at a distance of 50 cm from a concave lens of focal length 20 cm. Find the nature and position of the image.

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm . Find the nature and position of the image.

An object is placed at a distance of 4 cm from a concave lens of focal length 12 cm. Find the position and nature of the image.

An object is placed at a distance of 10 cm from a convex lens of focal length 12 cm. Find the position and nature of the image.

An object is placed at a distance of 10 cm from a convex lens of focal length 12 cm. Find the position and nature of the image.

An object is placed at a distance of 10cm from a convex lens of focal length 12cm.Find the position and nature of the image.

An object 4 cm high is placed at a distance of 10 cm from a convex lens of focal length 20 cm. Find the position, nature and size of the image.