A) 2 radian
B) 3 radian
C) 4 radian
D) 6 radian
Correct Answer: D
Solution :
[d] \[y(\overset{\to }{\mathop{r}}\,,t)=A\,\sin (\omega t-\overset{\to }{\mathop{k}}\,.\overset{\to }{\mathop{r}}\,)\] \[\hat{k}=\frac{2\pi }{\lambda }(\cos \alpha \hat{i}+\cos \beta \hat{j}+\cos \gamma \hat{k})=\frac{k}{\sqrt{3}}(\hat{i}+\hat{j}+\hat{k})\] \[{{\phi }_{1}}-{{\phi }_{2}}=2(3)=6\,rad.\]You need to login to perform this action.
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