A convexo –concave lens of crown glass has a radii of curvature equal to 1m and 12cm. Its focal power in air is P1 . The lens is placed horizontally on a plane mirror and filled with water as shown in figure (i). Now its focal power is P2 . Then lensis placed on a horizontal plane mirror and the space between them is filled with water as shown in figure (ii). Now its focal power is P3 . Then the lens is filled with water as shown in figure (iii). Now its focal power is P4 .
Column – I Column – II
A) P1 p) - 1.76 D
B) P2 q) - 2.42 D
C) P3 r) - 3.66 D
D) P4 s) - 8 D

Question

Examsnet · Accepted Answer

Correct Answer is : a - r  ; b - p  ; c - s ;  d - q

JEE Advanced Model Paper 9 with solutions for online practice