1.

Unit vector in the direction i + 2j + 3k is(A) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{7}}\)(B) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{14}}\)(C) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{2\sqrt{14}}\)(D) none of these

Answer»

Correct option is: (B) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{14}}\)



Discussion

No Comment Found

Related InterviewSolutions