A) \[{{E}_{ph}}\]
B) \[\frac{{{E}_{e}}}{{{E}_{ph}}}\]
C) \[\frac{v}{c}\]
D) \[\frac{v}{2c}\]
Correct Answer: A
Solution :
If \[{{y}_{2}}=b\sin \frac{2\pi }{\lambda }[(vt-x)+{{x}_{0}}]\] is the mass/length, then weight of hanging length \[{{x}_{0}}=(\lambda /2)\] Weight of chain on the table \[\left| a-b \right|\] \[a+b\] \[\sqrt{{{a}^{2}}+{{b}^{2}}}\] \[\sqrt{{{a}^{2}}+{{b}^{2}}+2ab\,\cos \,x}\] Equating \[\frac{{{\varepsilon }_{0}}A}{d}\left[ \frac{{{k}_{1}}}{{{k}_{2}}}+\frac{{{k}_{2}}{{k}_{3}}}{{{k}_{2}}+{{k}_{3}}} \right]\] \[\frac{{{\varepsilon }_{0}}A}{d}\left[ \frac{{{k}_{1}}}{{{k}_{2}}}+\frac{({{k}_{2}}+{{k}_{3}})}{{{k}_{2}}{{k}_{3}}} \right]\]
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