Question

Asserion: Magnitude of the resultant of two vectors may be less than the magnitude of either vector.
Reason: The resultant of two vectors is obtained by means of law of parallelogram of Vectors.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false.
D. If both aseertion and reason are false.

Answer 1

Correct Answer - B
If `vec(a)` and `vec(b)` are inclined at an angle greater than `90^(@)`, their resultant has magnitude
`R=sqrt(a^(2)+b^(2)+2ab cos theta)`
Which is less than both a and b, when they are nearly equal.