Advertisements
Advertisements
Question
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.

Advertisements
Solution
Focal length o f concave mirror= 10 cm. Object distance = 30 cm.

The image is real, inverted, and diminished.
APPEARS IN
RELATED QUESTIONS
Define the following term in the context of spherical mirrors:- Principal focus
What type of image is formed:
in a plane mirror?
Define the following terms in the context of spherical mirrors :
(i) Pole
(ii) Centre of curvature
(iii) Radius of curvature
(iv) Principal axis
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.

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