A convex mirror of focal length 10cm is shown in Figure . A linear object `AB=5cm` is placed along the optical axis. Point B is at distance `25cm` from the pole of mirror. Calculate the size of the image of AB.

A convex mirror of focal length 10cm is shown in figure. A linear object AB=5cm is placed along the optical axis. Point B is at distance 25cm from the pole of mirror. The size of image of AB is

A linear object is placed along the axis of a mirror as shown in figure. If 'f' is the focal length of the mirror then the length of image is-

An object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at

An object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is

An object is placed at a distance of 20 cm from the pole of a concave mirror of focal length 10 cm. The distance of the image formed is

An object AB of height 1cm lying on the axis of convex mirror of focal length20cm, at a distance of 30cm from its pole as shown in figure. Now the object starts moving with a constant speed 1 cm//sec towards the pole. Calculate Q. Rate of change of height of image.

An object AB of height 1cm lying on the axis of convex mirror of focal length20cm, at a distance of 30cm from its pole as shown in figure. Now the object starts moving with a constant speed 1 cm//sec towards the pole. Calculate Q. Rate of change of height of image.

A concave mirror and a convex mirror of focal lengths 10cm and 15cm are places at a distance of 70cm. An object AB of height 2cm is places at a distance of 30cm from the concave mirror. First ray is incident on the concave mirror then on the convex mirror. Find size, position, and nature of the image.