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An iron wire bent in the shape of parabola has rectum of length 60cm what is it's focal length?​

An iron wire bent in the shape of parabola has rectum of length 60cm what is it's focal length?​
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1 vote
An iron wire bent in the shape of parabola has rectum of length 60cm what is it's focal length?​

User Nadewad
by
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1 Answer

13 votes

Answer:

70cm

Explanation:

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User Suresh Bambhaniya
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