An erect image of 3 tiems the size of the object is obtined with a conccave mirror of radius of curvature 36 cm.What is the position of the object?

When the image formed by a concave mirror is at infinity then what is the position of the object?

An object 5.0 cm of length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image,its nature and size.

A convex lens forms a virtual image of an object. What is the position of the object?

An object is placed 15 cm from a convex mirror of radius of curvature 90 cm.Calculate the image position and magnification.

An object 8 cm long is placed at a distance of 100 cm from a concave mirror of radius of curvature 40 cm.Find the position of the image formed by the mirror.

An object of height 5cm is placed 200cm in front of concave mirror of radius of curvature 40 cm. Find the size of the image.

An object is placed in front of concave mirror of radius of curvature 40 cm at a distance of 10cm. Find the position, nature and magnification.