Question

A teacher sets up the stand carrying a convex lens
of focal length 15 cm at 42.7 cm mark on the optical
bench. He asks four students A, B, C and D to
suggest the position of screen on the optical bench
so that a distinct image of a distant tree is obtained
almost immediately on it. The positions suggested
by the students were as:​

Answer 1

Step-by-step explanation:

focal length 15 cm at 42.7 cm mark on the optical

bench. He asks four students A, B, C and D to

suggest