(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

AB is the object, A'B_' is the image, and MM' is the position of the mirror. Complete the ray diagram showing the formation of the image and find the focal length of the mirror.

In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.

The following figure shows a concave mirror with its pole (P), focus (F), and center of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.

Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.

Complete the following diagrams shown in the following figures by drawing the reflected rays.

Define the term Pole.

Define the term Centre of curvature.

Define the term Focus of a concave mirror.

Define the term Normal.

Define the term Principle focus.

Draw a ray diagram to show that a convex mirror has a wider field of view.

A concave mirror can be used to produce a parallel beam of light. Draw a ray to illustrate this.

An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror

An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror

An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.

The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?

The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.

Complete the following diagrams shown in the following figures by drawing the reflected rays.