A) \[\frac{\overrightarrow{A}}{\sqrt{3}}\]
B) \[\frac{\overrightarrow{A}}{\sqrt{2}}\]
C) \[\sqrt{3}\,\overrightarrow{A}\]
D) \[\frac{\sqrt{3}}{\overrightarrow{A}}\]
Correct Answer: A
Solution :
[a] Let the components of \[\text{\vec{A}}\] make angles \[\alpha \],\[\beta \] and \[\gamma \] with x, y and z-axis respectively then \[\alpha =\beta =\gamma \] and \[co{{s}^{2}}\alpha +\text{ }co{{s}^{2}}\beta \text{ }+\text{ }co{{s}^{2}}\gamma \text{ }=\text{ }1\]
You need to login to perform this action.
You will be redirected in
3 sec
