Question

An object placed at a distance of 25 cm from a convex lens to form a virtual image at a distance of 1 m. Find the focal length of the lens. Draw a ray diagram showing the formation of image.

Answer 1

Answer:

1/f=1/v+1/u

1/f = 1/ 100(i meter = 100 cm)+1/25

1/f= 1/100+4/100

1/f=5/100

1/f = 0.05 (answer)

sorry i dont have camera in my PC so unable send the picture of the diagram

Answer 2

Answer:

see attachment ✌️

Explanation:

hope it helps