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A straight line passes through (1, -2, 3...

A straight line passes through (1, -2, 3) and perpendicular to the plane `2x+3y-z=7`.
What are the direction ratios of normal to plane?

A

(2, -1, 5)

B

(-1, 2, -3)

C

(5,4,1)

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Let Q(x,y,z) is the image of (1,-2,3) in the plane
`(x-1)/2=3rArrx=5`
`(y-2)/2=1 rArr y=4`
`(z+3)/2=2 rArr z=1`
`:." Image of "(1,-2,3)" are " (5,4,1)`
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