Draw a ray diagram to show the path of the reflected ray corresponding to an incident ray which is directed towards the principal focus of a convex. mirror. Mark on it the angle of incidence and the angle of reflection.

The linear magnification produced by a spherical mirror is +3. Analyse this value and state the (i) type of mirror and (ii) position of the object with respect to the pole of the mirror. Draw ray diagram to show the formation of image in this case.

Draw ray diagrams showing the image formation by a convex lens when an object is placed:At twice the focal length of the lens.

An object is placed just outside the principal focus of concave mirror. Draw a ray diagram to show how the image is formed, and describe its size, position and nature.

With the help of a labelled ray diagram, describe how a converging mirror can be used to give an enlarged upright image of an object.

Find the focal length of a lens of power – 2.0 D. What type of lens is this?

1. Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of:

1. 0.50m
2. 0.25m
3. 0.15m

2. Which of the above cases represents the use of convex lens in a film projector, in a camera, and as a magnifying glass?

Describe the nature of image formed when the object is placed at a distance of 20cm from a concave mirror of focal length 10cm.

If the object is moved further away from the mirror, what changes are there in the position and size of the image?

A star appears slightly higher (above) than its actual position in the sky illustrate it with the help of a labelled diagram.