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Question
Which of the following is magnitude of vectors. `veca = hati + hatj + hatk`
Options
`sqrt(3)`
`sqrt(3)`
0
2
MCQ
Solution
`sqrt(3)`
Explanation:
`veca = hati + hatj + hatk`
`|veca| = sqrt(1^2 + 1^2 + 2^2)`
`[because |xhati + yhatj + zhatk| = sqrt(x^2 + y^2 + z^2)]`
= `sqrt(3)`
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