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What is the condition for vecA+vecB=vecA...

What is the condition for `vecA+vecB=vecA-vecB` to be valid ?

A

`vecA=0`

B

`vecB=0`

C

`vecA=vecB`

D

`vecA=-vecB`

Text Solution

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The correct Answer is:
B
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CHHAYA PUBLICATION-VECTOR-EXERCISE (Multiple Choice Questions)
  1. What is the condition for vecA+vecB=vecA-vecB to be valid ?

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  2. Magnitudes of sum and difference of two vectors are equal . Angle betw...

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  3. Magnitude of each of two vectors is P. Magnitude of the resultant of...

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  4. Two forces of equal magnitude act simultaneously on a partical. If th...

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  5. A travels 30 m to the north, then 20 m to the east and after that 30s...

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  6. 0.2 hati+0.6 hatj+ahatk is a unit vector. Value of a should be

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  7. vecR is the resultant of the vectors vecA and vecB. If R=B/(sqrt(2)) t...

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  8. Position vector of a particle is related to time t as vecr=(t^2-1)hati...

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  9. Two forces of the same magnitude F are at right angles to each other....

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  10. If a and b two unit vectors inclined at an angle of 60^@ to each other...

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  11. The condition (a*b)^2 =a^2b^2 is satisfied when

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  12. If vecP+vecQ=vecR and |vecP|=|vecQ|=sqrt(3) and |vecR|=3 , then the ...

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  13. The angles which the vector vecA =3hati+6hatj+2hatk makes with the coo...

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  14. If veca+vecb=vecc, and a+b=c then the angle between veca and vecb is

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  15. If a1 and a2 are two non-collinear unit vectors and if |a1+a2|=sqrt(3)...

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  16. Which of the following is a vector quantity ?

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  17. The resultant of two forces of magnitude (x+y) and (x-y) is sqrt(x^2+y...

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  18. The sum of magnitudes of two forces acting at a point is 16 N. The r...

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  19. Two men have velocities of 4 m/s towards east and 3 m/s towards sout...

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  20. Two forces in the ratio 1:2 act simultaneously on a particle. The resu...

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