Question

Find the position, nature and size of the image formed by a convex lens of focal length 20 cm of an object 4 cm high placed at a distance of 30 cm from it.

Answer 1

Answer:

Focal length, f = + 20 cm (It is a convex lens.) Thus, the image is formed at a distance of 20 cm from the convex lens (on its left side). Only a virtual and erect image is formed on the left side of a convex lens. ... Thus, the height or size of the image is 8 cm

hope it will help you kindly mark the answer as brainlist.

Answer 2

Explanation:

what is the highest the lowest ,the ,total resistance that can be secured by combination of four coils of resistors 4ohm ,12ohm,8ohm and 24ohm