Read each statement below carefully and state, with reasons and examples, if it is true or false: 

A scalar quantity is one that

(a) is conserved in a process

(b) can never take negative values

(c) must be dimensionless

(d) does not vary from one point to another in space

(e) has the same value for observers with different orientations of axes  

Asked by Abhisek | 1 year ago |  118

1 Answer

Solution :-

​​​​Right answer is (a) False

Explanation:-

Despite being a scalar quantity, energy is not conserved in inelastic collisions.

 Right answer is (b) False

Explanation:-

Despite being a scalar quantity, the temperature can take negative values.

Right answer is (c) False

Explanation:-

The total path length is a scalar quantity. Yet it has the dimension of length.

Right answer is (d) False

Explanation:-

A scalar quantity such as gravitational potential can vary from one point to another in space.

 Right answer is (e) True

Explanation:-

The value of a scalar does not vary for observers with different orientations of axes.

Answered by Pragya Singh | 1 year ago

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