Question

an object is placed at the distance of 20 CM in front of a convex mirror radius of curvature 8 cm findthe position of the image , nature , magnification​

Answer 1

u=20cm

r=8cm

f=8/2=4cm

1/f=1/v+1/u

1/4=1/v+1/20

1/v=1/4-1/20

1/v=4/20

1/v=1/5

v=5cm

THE IMAGE IS FORMED 5CM FROM THE MIRROR.

MAGNIFICATION=V/U

MAGNIFICATION=5/20

MAGNIFICATION=1/4