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The projection of a line segment on the ...

The projection of a line segment on the coordinate axes are 2,3,6. Then the length of the line segment is

A

5 units

B

7 units

C

11 units

D

49 units

Text Solution

Verified by Experts

The correct Answer is:
B
Position vector of line segment `=2hati+3hatj+6hatk`
Length `=sqrt(2^2+3^2+6^2)=sqrt49=7` unit
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NDA PREVIOUS YEARS-3-D GEOMETRY-MCQ
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  3. The projection of a line segment on the coordinate axes are 2,3,6. The...

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  6. A straight line passes through (1, -2, 3) and perpendicular to the pla...

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  7. Consider the spheres x^2+y^2+z^2-4y+3=0 and x^3+y^2+z^2+2x+4z-4=0. ...

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  8. Consider the spheres x^2+y^2+z^2-4y+3=0 and x^3+y^2+z^2+2x+4z-4=0. ...

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  9. Consider the spheres x^2+y^2+z^2-4y+3=0 and x^3+y^2+z^2+2x+4z-4=0. ...

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  11. Consider a sphere passing through the origin and the points (2,1,-1),(...

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  12. Consider a sphere passing through the origin and the points (2,1,-1),(...

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  14. The line joining the points (2, 1, 3) and (4, -2, 5) cuts the plane 2x...

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  15. Conisder the plane passing through the points A(2,2,1),B(3,4,2) and C...

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  16. Conisder the plane passing through the points A(2,2,1),B(3,4,2) and C...

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