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When vecA+ vecB=vecA-vecB, then vecB is ...

When `vecA+ vecB=vecA-vecB`, then` vecB` is a

A

Positive vector

B

negative vector

C

parallel vector

D

Null vector

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Verified by Experts

The correct Answer is:
D
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MBD PUBLICATION-VECTOR ANALYSIS-QUESTION BANK
  1. What is the minimum number of vectors to give zero resultant.

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  2. The angle between the two vectors when there sum is equal to their dif...

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  3. When vecA+ vecB=vecA-vecB, then vecB is a

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  4. The minimum number of unequal vectors which can give zero resultant is

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  5. When vecAcdotvecB=-vecAvecB, the two vectors are

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  6. If vecA xx vecB=vecC then

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  7. Unit vector (vecA xx vecB)/(abs (vecA xx vecB)) is perpendicular to

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  8. The scalar product of two vector a = 3vechati-4vechatj+vechatk and ve...

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  9. When two forces 5 kg wt and 10 kg wt act with inclination of 120^@ bet...

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  10. To a man going east in a car with velocity of 40 km/h., a train appear...

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  11. A boat which has a speed of 5 km/hr in still water crosses a river of ...

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  12. A particle A is moving along a straight line with velocity 3 m/s and a...

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  13. Volume is

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  14. Which is vector quantity

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  15. Which is only vector quantity out of the following

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  16. If vecA and vecB are two vectors then the correct statement is

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  17. Dot or scalar product two vectors vecA=2hati-3hatj+hatk and vecB=2hatj...

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  18. If hatn is a unit vector in the direction of vector vecA, then

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  19. If vecA=vecB+vecC and magnitude of vecA, vecB and vecC are 5, 4 and 3...

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  20. Dot or saclar product of the vectors vecA=2hati-3hatj+hatk and vecB=3...

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