An electromagnetic wave with frequency 5.70 * 10^14 Hz propagateswith a speed of 2.17 * 10^8 m/s in a certain piece of glass. Find the wavelength of a wave of the same frequency propagating in air
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with a speed of 2.17 * 10^8 m/s in a certain piece of glass. Find the wavelength of a wave of the
same frequency propagating in air
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