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If vec(a) be a unit vector, then :-...

If `vec(a)` be a unit vector, then :-

A

direction of `vec(a)` is constant

B

magnitude of `vec(a)` is constant

C

both (A) and (B)

D

any one of direction or magnitude is constant .

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • If vec(a) is a non-zero vector of modulus a and lamda is a non-zero scalar and lamda vec(a) is a unit vector, then

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