1) Which of the following would you prefer to use while reading small letters found in a dictionary? a) A convex lens b) A convex mirror c) A concave lens d) Either (a) or (b) 2) if an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be a) 2m b) 0.5m c) 1m d) 0.25m 3) A virtual image a) can be formed on the screen b) cannot be formed on the screen c) is formed only by a plane mirror d) is formed only by the convex mirror 4) The path of the light is a) always a straight line b) a curved line c) a zig-zag line d) depends on the medium 5) The inner surface of a steel spoon acts as a ………………….. mirror a) plane mirror b) concave mirror c) convex mirror d) convex lens 6) Tina is observing her image in a plane mirror. The distance between the mirror and her image is 6 m. If she moves 2m towards the mirror then the distance between latha and her image will be a) 8m b) 10m c) 4m d) 5m 7) Q. The illustration shows a light ray striking an object. In the illustration, the light ray striking the object is- a) absorbed b) stopped c) reflected d) refracted 8) This is an example of a __________ mirror. a) Concave b) Diverging c) Convex d) Plane 9) What kind of mirror is used by dentists in examining tooth cavities? a) Plane mirror b) convex mirror c) none of the above d) Concave mirror 10) This picture shows that a pencil kept in water looks bent because a) Refractive index of water < Refractive index of air b) Density of water < Density of air c) Speed of light in water < Speed of light in air d) Frequency of light in water < Frequency of light in air 11) ________ is used in a magnifying glass.  a) concave mirror b) convex lens c) concave lens d) convex mirror 12) ____________ is used in peep holes a) convex lens b) concave mirror c) convex mirror d) concave lens

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