MCQOPTIONS
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MCQOPTIONS
| 1. |
\(\vec a,\;\vec b,\;\vec c\) are three orthogonal vectors. Given that \(\vec a = \hat i + 2\hat j + 5\hat k\) and \(\vec b = \hat i + 2\hat j - \hat k\), the vector \(\vec c\) is parallel to |
| A. | \(\hat i + 2\hat j + 3\hat k\) |
| B. | \(2\hat i + \hat j\) |
| C. | \(2\hat i - \hat j\) |
| D. | \(4\hat k\) |
| Answer» D. \(4\hat k\) | |