Shyam participated in a group discussion in his inter school competition on the practical application of light
and was very happy to win the award for his school. On that very evening, his father celebrated the day with a
family dinner. At a particular moment, Shyam observed in a curve plate, the image of a person’s mobile sitting
on his back side. Person’s mobile fell off which the person didn’t know about. Shyam went to the person and
informed about this. The person was thankful to Shyam.   
(i) From which one of the following sides of the plate Shyam observed this incident?
(a) North
(b) South
(c) Outward curve
(d) Inward curve
(ii) The part of the curve plate was acting like which of the following types of mirror?
(a) Convex
(b) Concave
(c) Plane
(d) None of these
(iii) Which of the following nature and size of image formed by this mirror?
(a) Virtual, erect, diminished
(b) Real, erect, diminished
(c) Inverted, erect, diminished
(d) None of these
(iv) An object is placed at a large distance in front of a convex mirror of radius of curvature 40 cm. How
far is the image behind the mirror?
(a) 20 cm
(b) 40 cm
(c) 60 cm
(d) 80 cm
(v) An object at a distance of +15 cm is slowly moved towards the pole of a convex mirror. The image
will get
(a) Shortened and real
(b) enlarged and real
(c) enlarge and virtual
(d) diminished and virtual