Question

1.

(a)Prajesh kept an object infront of a concave lens and (3)
he served certain image. What is the nature and size of the image
and draw the ray diagram for the above mentioned case.

(b)Find the focal length of a lens of power-2.0D.What type of lens
is this?​

Answer 1

Answer:

vsvgsggahshvshajabavvsvsjaah

Answer 2

Answer:

RAY DIAGRAMS FOR IMAGE FORMATION BY LENSES - DIAGRAM