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The resultant of vecp and vecq makes an...

The resultant of ` vecp and vecq` makes angle `alpha "with " vecp and beta " with " vecq` . Then

A

`alpha lt beta`

B

`alpha lt beta, p lt q`

C

`alpha lt beta, " if " p gt q`

D

`alpha lt beta, " if " p = q `

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The correct Answer is:
C
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Knowledge Check

  • The resultant of vecP and vecQ is perpendicular to vecP . What is the angle between vecP and vecQ

    A
    `cos^(-1)(P//Q)`
    B
    `cos^(-1)(-P//Q)`
    C
    `sin^(-1)(P//Q)`
    D
    `sin^(-1)(-P//Q)`

  • The resultant of vectors vecP and vecQ is vecR . The resultant becomes 2vecR when vecP is either doubled or reversed in V its direction.

    A
    The value of P : Q is `sqrt(3) : sqrt(5)`
    B
    The value of P : Q is `sqrt(3) : sqrt(2)`
    C
    The relation between P and R is P = `sqrt((3)/(2))`R
    D
    The relation between P and Q is `P = (1)/(sqrt(3))` Q.

  • vecP is resultant of vecA and vecB. vecQ is resultant of vecA and -vecB , the value of absP^2 + absQ^2 would be

    A
    `2B^2`
    B
    `2A^2`
    C
    `2(A^2-B^2)`
    D
    `2(A^2+B^2)`
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