A concave mirror produces an image of a long vertical pin, placed 40 cm from the mirror, at the position of the object. Find the focal length of the mirror.

A concave mirror forms a point sized image for an object placed at

How do you identify the focal point in focal length of concave mirror?

A concave mirror produces an image of 2 cm tall, when an object of 5 mm tall is placed at a distance of 10 cm from the mirror. Calculate the image distance and focal length of the mirror.

A concave mirror is made by cutting a portion of hollow glass sphere of radius 24 cm. Find the focal length of the mirror