Find minimum distance between the circle x² + (y-3)² = 1 and parabola y² = 4x

Option 1 - <p>√2<br>&lt;!-- [if !supportLineBreakNewLine]--&gt;<br>&lt;!--[endif]--&gt;</p>
Option 2 - <p>1</p>
Option 3 - <p>√2 - 1<br>&lt;!-- [if !supportLineBreakNewLine]--&gt;<br>&lt;!--[endif]--&gt;</p>
Option 4 - <p>2 + 1</p> <div align="center"><hr align="center" size="3" width="100%"></div>
3 Views|Posted 5 months ago
Asked by Shiksha User
1 Answer
R
5 months ago
Correct Option - 3
Detailed Solution:

Equation of normal   y = m x - 2 m - m 3 must pass through centre ( 0,3 )

m 3 + 2 m + 3 = 0 m 2 ( m + 1 ) - m ( m + 1 ) + 3 1 ( m + 1 ) = 0 ( m + 1 ) m 2 - m + 3 = 0 m = - 1

  point of contact of normal at parabola is a m 2 , - 2 a m = ( 1,2 )

So distance between parabola and circle is = 2 - 1

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Maths Ncert Solutions class 11th 2026

Maths Ncert Solutions class 11th 2026

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