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2. The frequencies of radio waves range from 3x10^5Hz to 3x10^7Hz. What is the
range of wavelengths of these waves? Use 3x10^8m/s as the speed of electromagnetic
waves.

Respuesta :

asuwafohjames

Answer:

10 m to 1000 m

Explanation:

Using,

V = λf........... Equation 1

Where V = speed of electromagnetic wave, λ = wavelength, f = frequency

λ = V/f.......... Equation 1

Given: v = 3×10⁸ m/s, f = 3×10⁵ Hz to 3×10⁷ Hz

From the question,

The lowest wavelength is

λ' = 3×10⁸/3×10⁷

λ' = 10 m

While the highest wavelength is

λ = 3×10⁸/3×10⁵

λ  = 1000 m

Hence the range of wavelenths of the eave is 10 m to 1000 m

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