The mirror image of the point (1, 2, 3) ...

The mirror image of the point (1, 2, 3) in a plane is (-1,2,-3) . Which of the following points lies on this plane?

A

(0, 1, 2)

B

(0, 2, 0)

C

(0, 2, 1)

D

(1, -1, 1)

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The correct Answer is:

B

point on plane R(0, 2, 0)
Normal verctor of plane is `hati = 3hatk `
Equation of required plane is `x = 3z = 0`
`Hence (0, 2, 0) lines on plane

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