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ISRO 2009- ECE Engineering Mathematics

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A straight line and a circle of radius a are given. A chord is drawn at random to this circle parallel to the given line. Expected length of the chord is

a) 2a
b) π a
c) π a/2
d) None of the above

1 Answer

1 1 vote
Option (a)

The expected length of the chord is 2a, the case where it's the diameter of that circle.

In all other cases, we required additional info to solve it.
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