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What is the angle between P and the cro...

What is the angle between P and the cross product of `(P+Q)and (P-Q)`?

A

`90^(@)`

B

`tan^(-1) (p//Q)`

C

`tan ^(-1)(Q//p)`

D

`0^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) cross product of (P+Q)(P-Q) is [erpendicular to the plane formed by `(P+Q) and (P_Q).
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Knowledge Check

  • What is the resistance between P and Q ?

    A
    `3/4 Omega`
    B
    `4/3 Omega `
    C
    `16/3 Omega`
    D
    Infinity

  • What is the angle between vec(P) and the resultant of (vec(P)+vec(Q)) and (vec(P)-vec(Q)) ?

    A
    Zero
    B
    `tan^(-1)(P//Q)`
    C
    `tan^(-1)(Q//P)`
    D
    `tan^(-1)(P-Q)//(P+Q)`

  • The angles between P+Q and P-Q will be

    A
    `90^@`
    B
    between `0^@ and 180^@`
    C
    `180^@` only
    D
    None of these

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