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If vec a, vec b, vec c are any three mut...

If `vec a, vec b, vec c` are any three mutually perpendicular vectors of equal magnitude a, then `|vec a+ vec b+ vec c|` is equal to

A

a

B

`sqrt2a`

C

`sqrt3a`

D

`2a`

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The correct Answer is:
C
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NEW JOYTHI PUBLICATION-VECTOR ALGEBRA-OBJECTIVE TYPE QUESTIONS
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  9. vec a .(vec b + vec c) is equal to

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  10. If vec a = hat i + 2 hat j - 3 hat k and vec b = 3 hat i - hat j + 2 h...

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  11. If vec a and vec b are non - zero vectors and |vec a+ vec b| = |vec a ...

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  18. If vec a xx vec b and vec a. vecb = 0 then

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  19. If vec a = hat i - hat j and vec b = hat j + hat k then |vec a xx vec ...

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