Question

with the uses of mirror formulafind.u,when v=20 cm and f=5cm in concave mirror​

Answer 1

Answer:

1/f = 1/v - 1/u

1/5= 1/20 - 1/u

1/5 - 1/20 = -1/u

By LCM WE GET

-3/20= -1/u

3/20=1/u

HOPE THIS WILL HELP UH