Question

An air bubble is inside water. The refractive index of water is 4/3. At what distance from the air bubble shou
a point object be placed so as to form a real image at the same distance from the bubble :-
(A) 2R
(B) 3R
(C)4R
(D) The air bubble cannot form a real image
​

Answer 1

a,2r because 2ralways gives real image than that should be kept in 2r

Answer 2

Answer:

option D

Explanation:

because air bubble is a diverging lens, which will not form a real image, converging lens form a real image.