Question

please solve this
the best explanation will be mark as brainliest please ​

Answer 1

U = - 20 cm 
r = 30 
we know that 
f= r/2
f = 15
by mirror formula 
1/ f = 1/ v + 1/ u 
1/ v = 1/ f - 1/ u 
1/ v = 1/ 15 - 1/ -20
1/ v = 7/ 60 
v = 60/7 
v = 8.5 cm. 
I hope this will help u.

Answer 2

Answer:

position of image 60cm from the pole of mirror