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Two vector vecA and vecB are at right an...

Two vector `vecA` and `vecB` are at right angles to each other, when

A

`vecA+vecB=0`

B

`vecA-vecB=0`

C

`vecAxxvecB=0`

D

`vecA.vecB=0`

Text Solution

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The correct Answer is:
D
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ERRORLESS -VECTORS-Exercise
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  2. Consider a vector vecF=4hati-3hatj. Another vector that is perpendicul...

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  3. Two vector vecA and vecB are at right angles to each other, when

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  4. If |vecV(1)+vecV(2)|=|vecV(1)-vecV(2)| and V(2) is finite, then

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  5. A force vecF=(5hati+3hatj) Newton is applied over a particle which dis...

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  6. The angle between two vectors -2hati+3hatj+k and hati+2hatj-4hatk is

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  7. The angle between the vectors (hati+hatj) and (hatj+hatk) is

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  8. A particle moves with a velocity 6hati-4hatj+3hatk m//s under the infl...

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  9. If vecP.vecQ=PQ then angle between vecP and vecQ is

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  10. A force vecF=5hati+6hatj+4hatk acting on a body, produces a displaceme...

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  11. The angle between the two vectors vecA=5hati+5hatj and vecB=5hati-5hat...

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  12. The vector vecP=ahati+ahatj+3hatj and vecQ=ahati-2hatj-hatk, are perpe...

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  13. A body, constrained to move in the Y-direction is subjected to a force...

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  14. A particle moves in the x-y plane under the action of a force vecF suc...

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  15. The area of the parallelogram represented by the vectors vecA=2hati+3h...

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  16. A vector vecF(1) is along the positive X-axis. If its vectors product ...

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  17. If for two vectors vecA and vecB, vecA xxvecB=0, the vectors

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  18. The angle between (vecAxxvecB) and (vecBxxvecA) is (in radian)

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  19. What is the angle between (vecP+vecQ) and (vecPxxvecQ)

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  20. The resultant of the two vectors having magnitude 2 and 3 is 1. What i...

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