Question

A concave mirror produced two times magnified real image of an object placed at 10 CM in front of it. Find the position of the image

Answer 1

m=h(image) / h(object) = 2 ( given )
m = v/u = 2. -----------------( 1 )

u ( object distance ) = 10 cm. --------------------( 2 )
v ( image distance ) = ?

v/u = 2. => v / 10 = 2. --------------------( from 1 and 2)
=> v = 2 × 10 = 20 cm

Therefore, the image is formed at 20cm from the pole of the mirror.
The image is real, so the image is formed in front of the mirror.