Question

A student want to project the image of a candle glame on the walls of school lab by usong a lens. Which lens should be used

Answer 1

Convex lens
It is because concave lens would form a virtual image and for a real image Convex lens are needed..

Answer 2

Answer:Convex lens

It is because concave lens would form a virtual image and for a real image Convex lens are needed.