The electric field for an em wave is- E - E 0sin-12 - 1015 t -4 - 107 x - - What is the speed of the em waves-A- 12 - 1015 m - sB- 4 - 107 m - sC- 3 - 108 m - sD- 48 - 108 m - s

The correct option is C 3 x 108 m / s ...

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The electric field for an em wave is: E = E₀sin[(12 x 10¹⁵t – 4 x 10⁷ x)]. What is the speed of the em waves?

48 x 10⁸ m / s

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12 x 10¹⁵ m / s

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4 x 10⁷ m / s

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3 x 10⁸ m / s

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\to E = \to i 30 cos (k z - 5 \times 10^{8} t)

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(E)

B

In an EM wave the frequency of electric field is :

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