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प्रश्न
A ray of light passing through centre of curvature of a spherical mirror, after reflection
विकल्प
passes through the focus
passes through the pole
becomes parallel to the principal axis
retraces its own path.
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उत्तर
retraces its own path.
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संबंधित प्रश्न
If the image formed by a mirror for all positions of the object placed in front of it is always diminished, erect and virtual, state the type of the mirror and also draw a ray diagram to justify your answer. Write one use such mirrors are put to and why.
Fill in the following blank with a suitable word:
A ray of light which is parallel to the principal axis of a convex mirror, appears to be coming from ............ after reflection from the mirror.
Draw a labelled ray diagram to show the formation of image in a convex-mirror when the object is at infinity. Mark clearly the pole and focus of the mirror in the diagram.
A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The special mirror is made up of three types of mirrors in the following order from top downwards:
(a) Convex, Plane, Concave
(b) Plane, Convex, Concave
(c) Concave, Plane, Convex
(d) Convex, Concave, Plane
A full length image of a distant tall building can definitely be seen by using ______.
The nature of image formed by a convex mirror when the object distance from the mirror is less than the distance between pole and focal point (F) of the mirror would be ______.
The image formed by a convex mirror is always ______.
Assertion: A real image cannot be produced by plane or convex mirror.
Reason: The focal length of a convex mirror is always taken as positive.
What do you observe when an object is placed anywhere between P and infinity in front of a convex mirror?
