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To find the frequency of a wave, you can use the equation: speed = frequency x wavelength. The speed of light is approximately 3 x 10^8 m/s. Convert 12cm to meters (0.12m) and plug in the values to solve for frequency: frequency = speed/wavelength = (3 x 10^8 m/s) / 0.12m ≈ 2.5 x 10^9 Hz.

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1y ago

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