Physics-
General
Easy
Question
The coordinates of the centre of the smallest circle passing through the origin and having 
as a diameter are
The correct answer is:
The smallest circle means that its radial is, distance from origin to the diameter is smallest.
Let equation of line perpendicular to 
is 
Also, it passes through (0, 0)
Perpendicular line is 
The intersection point of lines are 
Which is the centre of circle.
Alternate It is clear from the figure that centre lies on IInd quadrant.
Hence, option (d) is correct
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