Advertisements
Advertisements
प्रश्न
Define the following term in relation to concave mirror.
Principal focus
व्याख्या
Advertisements
उत्तर
It is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection actually meet.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
Define the following term in the context of spherical mirrors:- Principal axis
Explain the following term related to spherical lenses:- centres of curvature
Match the items given in Column I with one or more items of Column II.
| Column I | Column II | ||
| (a) | A plane mirror | (i) | Used as a magnifying glass. |
| (b) | A convex mirror | (ii) | Can form image of objects spread over a large area. |
| (c) | A convex lens | (iii) | Used by dentists to see enlarged image of teeth. |
| (d) | A concave mirror | (iv) | The image is always inverted and magnified. |
| (e) | A concave lens | (v) | The image is erect and of the same size as the object. |
| (vi) | The image is erect and smaller in size than the object. |
Define the following term in relation to concave mirror.
Focal length
Define the term Aperture.
A person in front of a spherical mirror finds his image having a very small head, a fat body and legs of normal size. What are the shapes of three parts of the mirror?
What kind of mirror is used in vehicles to see the traffic on the rear side?
Define linear magnification of a mirror.
In torches, search lights and headlights of vehicles the bulb is placed ______.
