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If two vectors vecC=vecA+vecB and vecD=v...

If two vectors `vecC=vecA+vecB` and `vecD=vecA-vecB` are at right angle to each other, then

A

`absvecA=absvecB`

B

`absvecA=1/2absvecB`

C

`absvecA=2absvecB`

D

None of these

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A
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PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
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  8. (veca-vecb)xx(veca+vecb) is equal to

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  9. The vector vecaxx(vecbxxveca) is

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  10. vecA.(vecAxxvecB) is

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  13. The angle between the vector vecA and vecB is 0. The value of the trip...

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  14. If veca and vecb are two vectors then the value of (veca+vecb) xx (vec...

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  15. The velocity of a particle is vecv=6hati+2hatj-2hatk. The component of...

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  16. The value of hatixx(hatixxveca)+hatjxx(hatjxxveca)+hatkxx(hatkxxveca) ...

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  17. If vector vecA and vecB have an angletheta between them, then value of...

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  18. A particle undergoes three successive displacements given by vecs1=sqr...

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  19. The resultant of vecA and vecB is R1. On reversing the vector vecB, th...

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