41. Distinguish between real image and virtual image. 42. i. What should be the position of the object when a concave mirror is to be used 43. 44. 45. 46. a. as a shaving mirror and b. in torches producing parallel beam of light? ii. A man standing in front of a mirror, finds his image having a very small head and legs of normal size. What type of mirrors are used in designing such a mirror? How can you distinguish between plane mirror, convex mirror and concave mirror by merely looking at the image formed in each case? i. Name the spherical mirror used as: a. shaving mirror b. Rear view mirror in vehicles c. Reflection in search-light. ii. Write any three difference between a real and a virtual image. A student wants to project the image of a candle flame on a screen 80 cm in front of a mirror by keeping the candle flame at a distance of 20 m from its pole. i. Which type of mirror should the student use? ii. Find the magnificent of the image produced. iii. Find the distance between the object and its image. Differentiate between virtual image formed by a concave mirror and of a convex mirror.