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प्रश्न
A real and enlarged image can be obtained by using a
पर्याय
Convex mirror
Plane mirror
Concave mirror
Either convex or plane mirror.
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उत्तर
A real and enlarged image can be obtained by using a Concave mirror
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संबंधित प्रश्न
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
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 name is given to the distance between spherical mirror and carbon paper?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
- What will be the focal length of this mirror?
- Which type of spherical mirror will it provide?
- State whether this spherical mirror will diverge or converge light rays.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
Define the radius of curvature.
What is “aperture”?
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
