Question

I'll mark the best brainliest... Plz answer this

Answer 1

Answer:

sorry to say but I don't know its answer

Explanation:

please mark my this answer as brainliest answer plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz

if you will do it then I will also mark your every answer as brainliest answer and I will also follow you

Answer 2

u=-60cm

m=1/2

m=-v/u

1/2=-v/-60

-v=-30cm

v=30cm

f=?

by mirror formula:

-1/60+1/30=1/f

on solving:

f=60cm

m=1/3

1/3=-v/u

v=(1/3)u

f=60cm

using mirror formula:

1/u+1/v=1/f

1/u-3/u=1/60

u=-120cm