Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let the plane 
be rotated through a right angle about its line of intersection with the plane 
. If the mirror image of the point 
in the rotated plane is 
, then :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Let equation of rotated plane be:
Above plane is perpendicular to 
So, 
Equation of rotated plane : 
Mirror image of 
in rotated plane is 
Equation of 
Let coordinate of 
be 
midpoint of 
is 
which will lie on the plane 
Hence 
Therefore, B is 
So, 
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