Which of the following measurements require 'index correction'?
RE-NEET 2026 · Easy
Consider three media P , Q and R with refractive indices 1 , 1.25 , and 1.5 respectively. The medium Q having a thickness of 5 cm is…
RE-NEET 2026 · Medium
The lens combination as shown in the figure, consists of two lenses, L_1 and L_2 , of the focal lengths +10 cm and -10 cm, respectively.…
RE-NEET 2026 · Medium
Light travels a distance x in time t_1 in air and 10x in time t_2 in another denser medium. What is the critical angle for this medium?
NEET 2023 · Medium
In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin)? A biconvex…
NEET 2023 · Hard
Two thin lenses are of same focal lengths ( f ), but one is convex and the other one is concave. When they are placed in contact with each…
NEET 2023 · Easy
