Question

an object is placed at the following distance from a concave mirror of focal length 10 centimetre options are 8 cm 15 CM 25 CM which position of the object will produce a real image larger than the object a virtual image larger than the object a real image smaller than the object

Answer 1

for u=8cm image is virtual and maginified
u=15cm image real and maginified
for u=25cm image

Answer 2

I don't know this answer because I want to earn points sorry for writing this post