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If vec a\ is a non zero vecrtor iof mo...

If ` vec a\ ` is a non zero vecrtor iof modulus ` vec a\ a n d\ m` is a non zero scalar such that `m a` is a unit vector, write the value of `mdot`

A

`m=+-1`

B

`m=|a|`

C

`m=(1)/(|a|)`

D

`m=+-2`

Text Solution

Verified by Experts

The correct Answer is:
C
Since, ma is a unit vector, `|ma|=1`
`implies|m||a|=1`
`implies|m|=(1)/(|a|)impliesm=+-(1)/(|a|)`
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