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JEE Advanced Model Paper 9 with solutions for online practice

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Question : 56 of 57

Marks: +1, -0

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

a - r , s ; b - r ; c - p , q ; d - p
a - r , s ; b - r ; c - p , q , s ; d - p
a - r ; b - r , s ; c - q ; d - p
a - r ; b - p ; c - s ; d - q

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