Question

Assertion: A physical quantity cannot be called a vector if its magnitude is zero.

Reason: A vector has both, magnitude and direction.

• 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.

Answer 1

The correct option is E

If Assertion is false but Reason is true.

Explanation for Assertion statement:

A physical quantity with zero magnitude can be called a vector, in particular, it is called a null vector.

Explanation for Reason statement:

A vector has both, magnitude and direction. For example, force, velocity, etc.

Therefore, Assertion is false but Reason is true.

Hence, option E is correct.