An equiconcave lens of refractive index and focal length -20 cm (in air) is kept in a medium of refractive index . Match the Column I with Column II. Column IColumn II(A) If lens is cut in two equal parts by a plane (Take, )(I)Lens will acts as glass slab (B) If lens is cut in two equal parts by a plane (Take, )(II)Lens will diverging and focal length will change(C) If (III)Lens will be diverging and focal length will remains same(D) If (IV)Lens will be converging and focal length will be change Choose the correct answer from the options given below.

The correct answer is B. P= or , So it acts as slab. It behaves as converging lens. Hence, A-(II), B-(III), C-(I), D-(IV).

An equiconcave lens of refractive index and focal length -…

Physics Ray Optics Matching Type Question MCQ (Single Correct)

An equiconcave lens of refractive index and focal length -20 cm (in air) is kept in a medium of refractive index .

Match the Column I with Column II.

	Column I		Column II
(A)	If lens is cut in two equal parts by a plane (Take, )	(I)	Lens will acts as glass slab
(B)	If lens is cut in two equal parts by a plane (Take, )	(II)	Lens will diverging and focal length will change
(C)	If	(III)	Lens will be diverging and focal length will remains same
(D)	If	(IV)	Lens will be converging and focal length will be change