Question

A person standing 2.0m in front of an amusement park mirror notice that his image is 3 times taller and erect what is the radius of curvature of the mirror

Answer 1

see this as example https://www.jiskha.com/questions/88668/when-standing-1-25-m-in-front-of-an-amusement-park-mirror-you-notice-that-your-image-is

Answer 2

nmnm

Answer 3

1/v + 1/u = 1/f
distance: 2m
magnified img: 3x2 (3 times)
1/2+1/6=1/f
3/6+1/6=1/f
4/6=1/f
6/4=f
f=3/2