Question

A physical quantity having magnitude and direction may or may not be a vector. State true or false with reason.​

Answer 1

Explanation:

A physical quantity having both magnitude and direction need not be considered a vector. For example, current having magnitude and direction, current is a scalar quantity. The essential requirement for a physical quantity to be considered a vector is that it should follow the law of vector addition.

Generally speaking, the rotation of a body about an axis is not a vector quantity as it does not follow the law of vector addition. However, rotation by a certain small angle follows the law of vector addition and is therefore considered a vector.

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Answer 2

Answer:

False, because a physical quantity having magnitude and direction will be a vector. But here it is witten may not be.

Explanation:

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