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What can be the angle between (vec(P)+ve...

What can be the angle between `(vec(P)+vec(Q))` and `(vec(P)-vec(Q))` ?

A

0

B

`(pi)/(2)`

C

`(pi)/(4)`

D

`pi`

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The correct Answer is:
B
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ALLEN -CIRCULAR MOTION-EXERCISE(O-1)
  1. The area of the parallelogram represented by the vectors vecA=2hati+3h...

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  2. What can be the angle between (vec(P)+vec(Q)) and (vec(P)-vec(Q)) ?

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  3. The value of n so that vectors 2hati+3hatj-2hatk, 5hati+nhatj+hatk and...

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  4. If a and b are two vectors.then the value of (a+b)xx(a-b) is

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  5. "|"oversetrightarrow(a).oversetrightarrow(b)"|"=sqrt3"|"oversetrightar...

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  6. A body is executing circular motion in the vertical plane containing d...

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  7. If the magnitude of velocity in the previous question is decreasing wi...

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  8. The direction of angular acceleration of a body moving in a circle in ...

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  9. The second's hand of a watch has length 6 cm. Speed of end point and m...

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  10. A point P moves in counter clockwise direction on a circular path as s...

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  11. A spot light S rotates in a horizontal plane with a constant angular v...

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  12. Which of the following statements is FALSE for a paricle moving in a...

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  13. A particle is moving in a circle:

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  17. A point mass m is suspended from a light thread of length l, fixed at ...

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