Kinematics Question 74
Question: Assertion : If dot product and cross product of and are zero, it implies that one of the vector and must be a null vector. Reason : Null vector is a vector with zero magnitude.
Options:
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.
Show Answer
Answer:
Correct Answer: B
Solution:
If
and
But it cannot be possible so it’s essential that one of the vector must be null vector.