A scalar quantity is one that
can never take negative values
must be dimensionless
does not vary from one point to another in space
has the same value for observers with different orientation of axes
Let $\theta$ be the angle between vectors $\vec{A}$ and $\vec{B}$. Which of the following figures correctly represents the angle $\theta$ ?
Explain null vector. Explain the physical significance of null vector.
If $\vec P = \vec Q$ then which of the following is NOT correct