Question

the image formed by a convex mirror of focal length 20centimetre is a quarter of the object what is distance of the object from the mirror ?

Answer 1

hey mate !!


here is your answer!!



given A/q

f = 20cm

1/v + 1/u = 1/f

m = h2/ h1 = -v/u = 1/4 , or , v = -u/ 4

-4/ u + 1/u = 1/20 or -3/ u = 1/ 20

u = -60cm


be brainly