1
WB JEE 2016
MCQ (Single Correct Answer)
+2
-0.5
The locus of the mid-points of chords of the circle x2 + y2 = 1, which subtends a right angle at the origin, is
A
$${x^2} + {y^2} = {1 \over 4}$$
B
$${x^2} + {y^2} = {1 \over 2}$$
C
xy = 0
D
$${x^2} - {y^2} = 0$$
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