Page 1 - HA-reflection of light
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Objective Questions:


               1. An object is placed 20 cm in front of a plane mirror. The mirror is
               moved 2 cm towards the object. The distance between the positions of
               the original and final images seen in the mirror is:
               (a) 2 cm

               (b) 4 cm


               (c) 10 cm


               (d) 22 cm


               Answer: (a) 4 cm
               2. A ray of light that strikes a plane mirror PQ at an angle of incidence of
                  o
               30 , is reflected from the plane mirror and then strikes a second plane
               mirror QR placed at right angles to the first mirror. The angle of reflection
               at the second mirror is:
                       o
               (a) 30
                       o
               (b) 45
                       o
               (c) 60
                       o
               (d) 90
                                    o
               Answer: (c) 60

               Subjective Questions:
               1. What are the four characteristics of image formed by a plane mirror?
               2. Why are images in a plane mirror reversed?


               3. What are the five uses of plane mirror?
               4. Does a plane mirror reverse an image left to right?
               5. What does a mirror do to an image?
               6. Is a mirror image 2d or 3d?
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