The point on the principal axis of a concave lense from where a beam of incident parallel ray appear to diverge is called the ___________________ of the concave lense.
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Answer:
focus
Explanation:
or called focul point
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2
Principal focus of concave lense
And not just focus because it have two focus
Answered by an IIT JEE ASPIRANT and all India mathematics OLYMPIAD TOPPER in class 10th
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