Advertisements
Advertisements
प्रश्न
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
पर्याय
Retraces its path
Passes through the focus
Passes through the pole
Becomes parallel to the principal axis.
Advertisements
उत्तर
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray : Retraces its path
APPEARS IN
संबंधित प्रश्न
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. |
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
Write two more characteristics of the image.
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
Define the following term in relation to concave mirror.
Center of curvature
Define the term Aperture.
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
A converging lens of focal length f is placed at a distance 0.3 m from an object to produce an image on a screen 0.9 m from the lens. With the object and the screen in the same positions, an image of the object could also be produced on the screen by placing a converging lens of focal length.
