Q.

Is it true that energy is a vector quantity?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
As we know, energy is the capacity of a physical system to perform work. Energy can be converted in various forms but not created or destroyed. Therefore, we can say that energy consumed equals the work done.
Mathematically expressed as:
Energy Consumed= Work done
            = Force × Displacement
Both the force and the displacement are vector quantities. Also, the product of two vector quantities gives the scalar quantity. So, we can say that energy is a scalar quantity. Energy is a scalar quantity because it does not have any direction.
The correct statement would be that energy is a scalar quantity.
 
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