Question

Your height as you dress in front of a spherical mirror in the morning for your 7 30 class is h. The absolute value of the focal length of the spherical mirror is 38.9 cm. If your image has the same upright orientation with its height = 1069h. then calcu ate how far in cm) you are standing from the mirror

kindly answer

Answer 1

Focal length (f) = 38.9cm

Magnification (m) = h^'/h= 0.1069

Magnification of mirror _

m = f/(f-u)

u = object distance

0.1069 = (38.9)/(38.9-u)

38.9 - u = 363.09

u = - 324.09 cm

Distance = 324.09 cm