A ray of light comes along the line and strikes the plane mirror kept along the plane at

MATHEMATICS · Single correct · ISC · Mathematics · Three-Dimensional Geometry · Three-Dimensional Geometry

Problem

A ray of light comes along the line

l=0

and strikes the plane mirror kept along the plane

p=0

B

A(2,1,6)

is a point on the line

l=0

whose image about

p=0

A'

. It is given that

l=0

\frac{x-2}{3}=\frac{y-1}{4}=\frac{z-6}{5}

and

p=0

x+y-2z=3

. The coordinates of

B

are (1)

(5,10,6)

(2)

(10,15,11)

(3)

(-10,-15,-14)

(4) None of these