Advertisements
Advertisements
Question
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
Advertisements
Solution
A concave mirror creates an image behind it when an object is positioned between its pole and focus. An enlarged, erect, and virtual image of the thing is created.
APPEARS IN
RELATED QUESTIONS
We can obtain an enlarged and erect image by a convex mirror.
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the advantage of using a carbon paper rather than a white paper?
How is a spherical mirror used to diverge a beam of light from a point? Name the type of mirror used.
Define the following terms in the context of spherical mirrors :
(i) Pole
(ii) Centre of curvature
(iii) Radius of curvature
(iv) Principal axis
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
A student traces the path of a ray of light passing through a rectangular slab.
 |
 |
 |
 |
For measuring the angle of incidence, he must position the protractor in the manner shown in the figure:
