Question

What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away?

Answer 1

Its a concave mirror. Because concave mirror has magnitude more than 1. Convex mirror dont have magnification more than 1

Answer 2

Nd the image of a concave mirror is real and opposit.
So magnification m=-1.5

Answer 3

But m=-v/u
-v/u=-1.5
v=1.5*u
v=1.5*12=18cm
Here given u=18cm

Answer 4

U need to use the equation
1/v+1/u=1/f
f=?

Answer 5

Response plz