# Ray Optics – Exercise – 1

Exercise – 1

1. Image formed by a convex mirror is : (a) Real (b) Inverted (c) Virtual, erect and diminished (d) None of these

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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

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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

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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

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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