Question

a 5 cm tall object is placed at a distance of 20 cm from a concave mirror of focal length 30 centimetre use mirror formula to determine the position and size of the image formed​

Answer 1

search in Google Bhaiya

Answer 2

Stature of article,

h = 5cm item remove from the arched mirror,

u = - 30 cm central length of curved mirror,

f = +15cm now, use recipe 1/v + 1/u = 1/f or,

1/v + 1/ - 30 = 1/15 or,

1/v = 1/15 + 1/30 = 3/30 or,

v = +10cm henceforth,

position of picture is 30 cm right side from the shaft of raised mirror.