Calculate the frequency of an EM wave with a wavelength of 4000 A 0-A- 7-5 - 1014 HzB- 8-5 - 1014 HzC- 4-0 - 1015 HzD- 2-2 - 1014 HzE- 9-5 - 1015 Hz

The correct option is A 7.5 x 1014 Hz ...

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Alternating Current and Direct Current

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Question

Calculate the frequency of an EM wave with a wavelength of 4000 A⁰.

7.5 x 10¹⁴ Hz

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8.5 x 10¹⁴ Hz

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4.0 x 10¹⁵ Hz

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2.2 x 10¹⁴ Hz

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9.5 x 10¹⁵ Hz

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