MCQOPTIONS
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MCQOPTIONS
| 1. |
The rms value of the electric field of the light coming from the Sun is\[720\text{ }N/C\]. The average total energy density of the electromagnetic wave is |
| A. | \[4.58\times {{10}^{-6}}J/{{m}^{3}}\] |
| B. | \[6.37\times {{10}^{-9}}J/{{m}^{3}}\] |
| C. | \[81.35\times {{10}^{-12}}J/{{m}^{3}}\] |
| D. | \[3.3\times {{10}^{-3}}J/{{m}^{3}}\] |
| Answer» B. \[6.37\times {{10}^{-9}}J/{{m}^{3}}\] | |