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Get Answers to all your Questions
Q19 If are two collinear vectors, then which of the following are incorrect:
(A) for some saclar
(B)
(C) the respective components of are not proportional
(D) both the vectors have same direction, but different magnitudes.
Answers (1)
If two vectors are collinear then, they have same direction or are parallel or anti-parallel.
Therefore,
They can be expressed in the form where a and b are vectors and
is some scalar quantity.
Therefore, (a) is true.
Now,
(b) is a scalar quantity so its value may be equal to
Therefore,
(b) is also true.
C) The vectors 
and 
are proportional,
Therefore, (c) is not true.
D) The vectors 
and 
can have different magnitude as well as different direction.
Therefore, (d) is not true.
Therefore, the correct options are (C) and (D).
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