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CBSE Class 10 Answered

It is desired to get an erect image of an object,using a concave mirror of focal length 20 cm.
What should be the range of distancce of the object from mirror?
Asked by SHUBHAM GHODE | 20 Mar, 2017, 04:02: PM
answered-by-expert Expert Answer
  • The concave mirrors give out erect image only when the range of distance of the object from the mirror is less than the focal length of that concave mirror.
  • Therefore, the range of distance of the object from mirror should be less than 20 cm.
  • When the range of distance of the object from the mirror is doubled, the image is formed in front of the mirror but inverted.
Answered by Abhijeet Mishra | 20 Mar, 2017, 06:49: PM
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