Question

Assertion : The dot product of One vector with another vector may be a scalar or a vector . Reason : If the product of two vectors is a vector quantity , then product is called a lot product . [ AIIMS 1998 ] ( 1 ) A ( 2 ) B ( 3 ) C ( 4 ) D

Answer 1

Answer:

Assertion:

The dot product of one vector with another vector may be scalar or vector.

Reason:

If the product of 2 vector is a vector quantity , then the product is called dot product.

Explanation:

First of all,

Dot products are always scalar products . Dot products always give scalar values without any directions.

Let us take an example :

2 vectors be A and B, dot product between them will give A.B = C (let) . This "C" will be a just a scalar quantity without any direction.

SO ASSERTION IS WRONG.

Now, see the reason, the correct statement will be:

If product if 2 vectors give us another vector, it is called Cross Product.

SO REASON IS WRONG.

THE CORRECT OPTION IS 4)D.