A scalar quantity is defined as the physical quantity that has only magnitude, for example, power, mass and electric charge.
On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force, weight, acceleration and velocity.
21) Which of the following is a scalar quantity?
Answer is:
Power
Explanation:
Related RRB ALP Mechanical Question Paper 2013 Set-1 with Answer Key
Answer is: