Question

(a) 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 cm from its
pole.
(0) Which type of mirror should the student use?
(ii) Find the magnification of the image produced.
(iii) Find the distance between the object and its image
(iv) Draw a ray diagram to show the formation of image in this case and
mark the distance between the object and its image.​

Answer 1

1. Concave mirror should be used.
2. Object distance, u = - 20 cm; image distance, v = - 80 cm;  magnification, m = -v/u = -80 cm/ -20 cm = -4
3. Distance between the object and its image = v-u = 60cm
4. as attachment

Hope it helps you.