Published by:
CGP EDU Academic Team
Published on: August 23, 2026
A circle of radius 2 unit passes through the vertex and the focus of the parabola 
and touches the parabola 
, where 
. Then 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
63
(63) Vertex and focus of parabola 
are 
and 
resp.
Let equation of circle be
Circle passes through 
Circle passes through 
On solving (1) and (2)
is rejected as circle with centre 
can't touch given parabola.
Equation of circle is
From figure 
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