The focal length of a convex lens is `30cm` and the size of the real image is `(1)/(4)th` of the object. Then the object distance is

The focal length of a convex lens is 30 cm and the size of image is quarter of the object.Them,the object distance is

The focal length of convex lens is 30 cm and the size of image is quarter of the object, then the object distance is

An object is placed in front of a convex lens of focal length 12 cm. If the size of the real image formed is half the size of the object, calculate the distance of the object from the lens.

A convex lens of focal lengths 30 cm produces 5 times magnified real image of an object What is the object distance ?

A convex lens of focal length 16 cm forms a real image double the size of the object. The distance of the object from the lens is

A convex lens of focal length 30 cm produces 5 times magnified real image of an object. What is the object distance?

A convex lens of focal length 30 cm produces 5 times magnified real image of an object. What is the object distance?

A convex lens of focal length 16 cm forms a real image double the size of the object. The image distance of the object from the lens is

An object is placed in front of a thin convex lens of focal length 30cm and a plane mirror is placed 15cm behind the lens.If the final image of the object coincides with the object the distance of the object from the lens is