Published by:
CGP EDU Academic Team
Published on: August 11, 2026
The reflection of the point (2, –1, 3) in the plane 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let P be the point (2, –1, 3) and Q be its reflection in the given plane.
Then, PQ is perpendicular to the given plane
Hence, d.r.’s of PQ are 3, –2, 1 and consequently, equations of PQ are 
Any point on this line is 
Let this point be Q .
Then midpoint of PQ
This point lies in given plane i.e.
⇒ ⇒ 
⇒ ⇒ 
⇒ ⇒ 
Hence, the required point Q is
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