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What is the angle between (vec(P)+vec(Q)...

What is the angle between `(vec(P)+vec(Q))` and `(vec(P)xxvecQ)?`

A

`90^(@)`

B

`0^(@)` only

C

any angle between `0^(@)` and `180^(@)`

D

`180^(@)` only

Text Solution

Verified by Experts

The correct Answer is:
C
`beta` is angle between `vec(P)+vec(Q)` and `vec(P)-vec(Q)`. `beta` can have any value from `0^(@)` to `180^(@)` depending upon magnitudes of `vec(P)` and `vec(Q)` and angle `theta` between them.
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