Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror] Column 1 Column 2 (A) m = - 2 (a) Convex mirror (B) m = - (1)/(2) (b) Concave mirror (C) m = + 2 (c) Real

Correct answer: A. A → b and c; B → b and c; C → b and d; D → a and d m = (- V)/(u) = (f)/(f - u) m = - 2 then "V" and "u" same given - 2 = (f)/(f - u) =- 2f + 2u = f = 3f = 2u (+ 3f)/(2) = u For the concave mirror, f negative, u negative use same for all.

NEET 2016

Exam: NEET
Year: 2016
Subject: Physics
Chapter: Ray Optics

NEET 2016 · Physics · Ray Optics

Match the corresponding entries of column 1 with column 2. [Where m...

Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror]

	Column 1		Column 2
(A)	$m = - 2$	(a)	Convex mirror
(B)	$m = - \dfrac{1}{2}$	(b)	Concave mirror
(C)	$m = + 2$	(c)	Real image
(D)	$m = + \dfrac{1}{2}$	(d)	Virtual image

Options

AA $\to$ b and c; B $\to$ b and c; C $\to$ b and d; D $\to$ a and d
BA $\to$ a and c; B $\to$ a and d; C $\to$ a and b; D $\to$ c and d
CA $\to$ a and d; B $\to$ b and c; C $\to$ b and d; D $\to$ b and c
DA $\to$ c and d; B $\to$ b and d; C $\to$ b and c; D $\to$ a and d

Correct answer

A. A $\to$ b and c; B $\to$ b and c; C $\to$ b and d; D $\to$ a and d

Step-by-step solution

m = \dfrac{- V}{u} = \dfrac{f}{f - u}

m = - 2

then "V" and "u" same given

- 2 = \dfrac{f}{f - u} =- 2f + 2u = f

= 3f = 2u

\dfrac{+ 3f}{2} = u

For the concave mirror, f negative, u negative use same for all.

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