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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)

(b)

(c)

(d)



Question ID - 50292 | SaraNextGen Top Answer

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)

(b)

(c)

(d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

C=

V=[for transparent medium 0]

=intensity=

C = kE2V

Similarly

127 votes


127