A) \[4.23\times {{10}^{-8}}T\]
B) \[1.41\times {{10}^{-8}}T\]
C) \[2.83\times {{10}^{-8}}T\]
D) \[0.70\times {{10}^{-8}}T\]
Correct Answer: C
Solution :
| [c] \[\frac{{{E}_{rms}}}{{{B}_{rms}}}=c\] |
| \[{{B}_{rms}}=\frac{{{E}_{rms}}}{c}\] |
| \[=\frac{6}{3\times {{10}^{8}}}\] |
| \[{{B}_{rms}}=2\times {{10}^{-8}}\] |
| \[{{B}_{rms}}=\frac{{{B}_{0}}}{\sqrt{2}}\] |
| \[{{B}_{0}}=\sqrt{2}\times {{B}_{rms}}\] |
| \[=\sqrt{2}\times 2\times {{10}^{-8}}\] |
| \[=2.83\times {{10}^{-8}}T\] |
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