Assertion :The point A(1,0,7) is the mirror image of the point B(1,6,3) in the line : x1=y−12=z−23 Reason: The line x1=y−12=z−23 bisects the line segment joining A(1,0,7) and B(1,6,3).
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion Mid-point of AB is M(1,3,5)
M lies on the line
Directions ratios of AB is <0,6,−4>
Direction ratios of given line is <1,2,3>
As AB is perpendicular to the line
∴0.1+6.2+4.3=0
Hence, both assertion and reason are correct but the reason is not the correct explanation for the assertion.