MCQOPTIONS
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MCQOPTIONS
| 1. |
What is a vector of unit length orthogonal to both the vectors \(\hat i + \hat j + \hat k\) and \(2\hat i + 3\hat j - \hat k\) ? |
| A. | \(\frac{{ - 4\hat i + 3\hat j - \hat k}}{{\sqrt {26} }}\) |
| B. | \(\frac{{ - 4\hat i + 3\hat j + \hat k}}{{\sqrt {26} }}\) |
| C. | \(\frac{{ - 3\hat i + 2\hat j - \hat k}}{{\sqrt {14} }}\) |
| D. | \(\frac{{ - 3\hat i + 2\hat j + \hat k}}{{\sqrt {14} }}\) |
| Answer» C. \(\frac{{ - 3\hat i + 2\hat j - \hat k}}{{\sqrt {14} }}\) | |