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Magnitude of each of two vectors is P....

Magnitude of each of two vectors is P. Magnitude of the resultant of the two is also P. angle between the vectors is

A

`0^@`

B

`60^@`

C

`120^@`

D

`90^@`

Text Solution

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The correct Answer is:
C
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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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