A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
If q be the angle between two vectors \[\vec{A}\] and \[\vec{B}\], then their scalar product, \[\vec{A}.\vec{B}=AB\cos \theta \] If \[\theta =90{}^\circ \] then \[\vec{A}.\vec{B}=0\] i.e. if \[\vec{A}\] and \[\vec{B}\] are perpendicular to each other then their scalar product will be zero.
You need to login to perform this action.
You will be redirected in
3 sec
