Question

u= -25cm f= +20cm ho= +2.5cm v=? hi= ?​

Answer 1

Formula
If mirror
I/f = 1/v+1/u
Find v then
Formula for hi
M = hi/ho = - v/u
Put all value and find v and hi
Hope it helps you plz mark as brilliant answer

Answer 2

Answer:

mirror formula=1/f=1/u+1/v

1/+20=1/-25+1/v

1/v=1/25-1/20

1/v=4-5/100

1/v=-1/100

v=-100

m=-v/u

m=-100/-25

v=-4

hi/ho=4

4=hi/+2.5

hi=4into2.5

hi=10