Advertisements
Advertisements
प्रश्न
Define the term Principle focus.
Advertisements
उत्तर
Principal focus of a spherical mirror is a point on the principal axis of the mirror, where all the rays travelling parallel to the principal axis and close to it after reflection from the mirror, converge to or appear to diverge from.
APPEARS IN
संबंधित प्रश्न
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
What is a spherical mirror?
Discuss the position and nature of image formed by a convex mirror when an object is moved from infinity towards the pole of mirror.
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
A concave mirror forms a real image of an object placed in front of it at a distance 30 cm, of size three times the size of object. Find
- the focal length of mirror
- position of image.
Define the following term in relation to concave mirror.
Center of curvature
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use? Give reason.
