An electromagnetic wave of intensity 50 Wm−2 enters in a medium of refractive index ‘n’ without any loss. The ratio of the magnitudes of electric fields, and the ratio of the magnitudes of the wave before and after entering into the medium are respectively, given by: |
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(a) |
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(b) |
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(c) |
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(d) |
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An electromagnetic wave of intensity 50 Wm−2 enters in a medium of refractive index ‘n’ without any loss. The ratio of the magnitudes of electric fields, and the ratio of the magnitudes of the wave before and after entering into the medium are respectively, given by: |
|||
(a) |
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(b) |
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(c) |
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(d) |
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C=
V=[for transparent medium
0]
∴
=intensity=
∴C = kE2V
⇒
Similarly