A) \[\hat{s}=\frac{4\hat{j}-3\hat{k}}{5}\]
B) \[\hat{s}=\frac{3\hat{j}-4\hat{j}}{5}\]
C) \[\hat{s}=\left( \frac{-3\hat{j}+4\hat{k}}{5} \right)\]
D) \[\hat{s}=\frac{-4\hat{j}+3\hat{j}}{5}\]
Correct Answer: C
Solution :
[c] |
where and |
direction of propagation |
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