The focal length of cancave mirror in case the object lies between pole and focus is positive or negative??( I got confused because the image is formed behind the mirror and the focal length of cancave mirror for rest of the cases is negative so what about this case)

2

Answers

2016-02-27T16:52:26+05:30
Focal length of concave mirror is always negative,regardless of object or image distance.
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2016-02-27T20:02:28+05:30
When the object is real focal length is negative but in the upper case image is behind the mirror so it is virtual and it's focal length will be positive.

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nandini
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hm vot??
u want to be marked as brainliest ryt??
no
i want to help u
by the way how was ur science paper.