If `vec(a)` and `vec(b)`, are two collinear vectors, then which of the following are incorrect :
(A) `vec(b)=lambda vec(a)`, for some scalar `lambda`
(B) `vec(a)=+-vec(b)`
( C ) the respective components of `vec(a)` and `vec(b)` are not proportional
(D) both the vectors `vec(a)` and `vec(b)` have same direction, but different magnitudes.

Answer

Alternates (B), ( C ) and (D) are incorrect.