Question

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 in the sentence from its pole.
a. which type of mirror should the student use ?
b. find the magnification of image produced.
c. find the distance between the object and image.
d. draw a ray diagram to show the image formation in this case and mark the distance between the object and image.​

Answer 1

Concave mirror should be used.

Object distance, u = - 20 cm; image distance, v = - 80 cm;  

magnification, m = ?

m=-v/u =>m=-4

Distance between the object and its image=v-u=60cm