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प्रश्न
State whether true or false. If false, correct the statement.
When an object is at the centre of curvature of concave mirror the image formed will be virtual and erect.
पर्याय
True
False
उत्तर
False.
Correct Statement: The image formed is real, inverted and same size of the object.
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संबंधित प्रश्न
A student wants to project the image of a candle flame on the walls of the school laboratory by using a mirror.
(a) Which type of mirror should he use and why?
(b) At what distance, in terms of focal length 'f' of the mirror, should he place the candle flame to get the magnified image on the wall?
(c) Draw a ray diagram to show the formation of the image in this case.
(d) Can he use this mirror to project a diminished image of the candle flame on the same wall? State 'how' if your answer is 'yes' and 'why not' if your answer is 'no.'
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Explain why, a ray of light passing through the centre of curvature of a concave mirror gets reflected back along the same path.
If an object of 10 cm height is placed at a distance of 36 cm from a concave mirror of focal length 12 cm, find the position, nature and height of the image.
If the radius of curvature of a concave mirror is 20 cm, its focal length is:
To construct ray diagram we use two light rays which are so chosen that it is easy to know their directions after reflection from the mirror. List these two rays and state the path of these rays after reflection. Use these rays to locate the image of an object placed between centre of curvature and focus of a concave mirror.
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The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?
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Define principal focus of the concave mirror.
