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Assertion: The scalar product of two vec...

Assertion: The scalar product of two vectors can be zero
Reason: If two vectors are perpendicular to each other their scalar product will be zero.

A

`180^(@)`

B

`90^(@)`

C

`45^(@)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
Let two vectors `vec P and vec Q`
then, dot product of `vec P and vec Q = | vec P | cdot |vec Q| cos theta |vec P |vec Q| cos theta =0`
`because cos theta =0`
`therefore theta =90^(@)`
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