A concave mirror of focal length 10 cm is used to obtain an image on a screen. The image is five times in height relative to the object. Find the distance of the object from the mirror.

Solve the numerical problem A convex mirror has a focal length of 18 cm. The image of an object kept in front of the mirror is half the height of the object. What is the distance of the object from the mirror?

Solve the numerical problem A spherical mirror is used to obtain an Image on a screen. The height of the image is five times that of the object. What is the type of mirror and at what distance is the object Placed from the mirror?

A convex mirror has a focal length of 18cm. The image of an object kept in front of the mirror is half the height of the object. What is the distance of the object from the mirror?

Solve the following examples/ numerical problems: A spherical lens is used to obtain an image on a screen . The size of the image is four times the size of the object. What is the type of lens and at what distance is the screen placed from the lens ?

An object is kept in front of a concave mirror of focal length 15 cm. The image formed is three times the size of the object. The two possible distances of the object are

At what distance from a concave mirror of focal length 2 m should a boy stand so that his image is half his height?

A point object is moving uniformly towards the pole of a concave mirror of focal length 25 cm along its axis as shown below. The speed of the object is 1 ms" . At t = 0, the distance of the object from the mirror is 50 cm. The average velocity of the image formed by the mirror between time t = 0 and t = 0.25 s is

For concave mirror, if the object is at the focusn f, the image is

A real image is obtained at 30 cm from a convex lens of focal length 7.5 cm .Find the distance of the object from tne lens .

A convex lens of focal length f produces a real image 3 times as that of size of the object, the distance between the object and the lens is