What is the frequency in Hz of electromagnetic radiation that has a wavelength of 0.53 m?

1.3 x 10^-33

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1.6 x 10⁸

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1.8 x 10^-9

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5.7 x 10⁸

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Solution

The correct option is D
5.7 x 10⁸

The speed of all form of electromagnetic wave is related by the equation c = λ.ν,

Where c is the speed of light (=3.00 x 108 m/s ), λ is the wavelength in m and ν is the frequency is s-1 or Hz.

Therefore, by substituting the values in the formula, we get,

ν = 3.0 x 10⁸ / 0.53

= 5.66 x 10⁸ Hz

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