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Ray Optics – 1 – 1

1. Image formed by a convex mirror is :

(a) Real
(b) Inverted
(c) Virtual, erect and diminished
(d) None of these

ANSWER

EXPLANATION

2. Image formed by a concave mirror is :

(a) Real
(b) Inverted
(c) Real, Inverted and equal in size of lmage
(d) None of these

ANSWER

EXPLANATION

3. A person standing in front of mirror finds his image larger than himself. This implies that the mirror is :

(a) Convex
(b) Concave
( c) Plane
(d) Perabolic

ANSWER

EXPLANATION

4. The focal length (t) of a spherical mirror if radius of curvature R is :
 
(a) R/2
(b) R
(c) 3/2 R
(d) 2 R

ANSWER

EXPLANATION

5. A concave mirror has radius of curvature of 0.2 m its focal length is :

(a) -0.2 m
(b) -0.1 m
(c) 0.1 m
(d) 0.2 m

ANSWER

EXPLANATION

1 2 3

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