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For the non-zero vectors veca, vecb and ...

For the non-zero vectors `veca, vecb` and `vecc, veca.(vecbxxvecc)` = 0 if

A

`vecbbotvecc`

B

`vecabotvecb`

C

`veca||vecc`

D

`vecabotvecc`

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The correct Answer is:
B
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MBD PUBLICATION-VECTORS-QUESTION BANK
  1. Each question given below has four possible answers out of which only ...

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  2. (-veca).vecbxx(-vecc)) =

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  3. For the non-zero vectors veca, vecb and vecc, veca.(vecbxxvecc) = 0 if

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  4. Find the scalar triple product vecb.(veccxxveca) where veca, vecb and ...

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  5. Find the scalar triple product vecb.(veccxxveca) where veca, vecb and ...

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  6. Find the volume of the parallelopiped whose sides are given by the vec...

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  7. Find the volume of the Parallelepiped whose sides are given by the vec...

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  8. Show that the following vector are co-planar. hati-2hatj+2hatk, 3hati+...

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  9. Show that the following vector are co-planar. hati+2hatj+3hatk, -2hati...

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  10. Find the value of lambda so that the three vectors are co-planar. hati...

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  11. Find the value of lambda so that the three vectors are co-planar. (2,-...

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  12. If veca, vecb and vecc mutually perpendiculars, show that [veca.(vecbx...

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  13. Show that [veca+vecbvecb+veccvecc+veca] = 2[vecavecbvecc]

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  14. Prove that [vecaxxvecbvecbxxveccveccxxveca] = [vecavecbvecc]^2

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  15. For veca = hati+hatj, vecb = -hati+2hatk, vecc = hatj+hatk, obtain vec...

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  16. Prove that vecaxx(vecbxxvecc)+ vecbxx(veccxxveca)+veccxx(vecaxxvecb) =...

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  17. If veca, vecb, vecc be unit vectors and vecaxx(vecbxxvecc) = 1/2hatb, ...

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  18. Prove that the sum of the vectors directed from the vertices to the mi...

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  19. Prove by vector method that the diagonals of a quadrilateral bisect ea...

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  20. If G is the centroid of a triangle ABC, prove that vec(GA)+vec(GB)+vec...

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