Question

A concave spherical mirror forms a 40cm high real image of an object whose height is 10 cm . The radius of mirror is 60 cm. Find the distance from the object to its image.

Answer 1

I =height of image 
O= height of object 
v= distance of  image 
u= distance of  object 
R= radius 
R=2f known

Comments

Thanks for answering but Why is the height of image taken positive here.