JEE MATHEMATICS MCQ: CIRCLES

1 Easy

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Analyzing +4 | -1

The locus of the point, the chord of contact of tangents from which to the circle

x^2+y^2=a^2

subtends a right angle at the centre is a circle of radius

View answer and explanation

Correct option: C

\sqrt{2} a

Option C (

\sqrt{2} a

) is correct because the locus of the point is a circle with radius

\sqrt{2}a

, derived by using the chord of contact and the condition that it subtends a right angle at the center.

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