Answer is in Hz
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Gamma rays travel at the speed of light. Frequency is given by f = c/wavelength.
f = (3.0x10^8 m/s)/(4.27x10^-11 m) = 7.03 x 10^18 Hz
f = (3.0x10^8 m/s)/(4.27x10^-11 m) = 7.03 x 10^18 Hz
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You have to first understand what frequency is, and its relationship to the speed of light and to wavelength.
Frequency in Hertz means cycles per second. So a cycle of a wave in this case because light moves in a wave.
Your question is wrong to begin with, I think you mean to say gamma ray with WAVELENGTH of so and so.
In any case, speed = wavelength x frequency. Solve for frequency.
Speed of light is 3 x 10^ 8 m / s (that should be memorized or given on a formula sheet)
Frequency in Hertz means cycles per second. So a cycle of a wave in this case because light moves in a wave.
Your question is wrong to begin with, I think you mean to say gamma ray with WAVELENGTH of so and so.
In any case, speed = wavelength x frequency. Solve for frequency.
Speed of light is 3 x 10^ 8 m / s (that should be memorized or given on a formula sheet)
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frequency= speed of light in air / wavelength of given light
therefore, frequency= ( 3.0 * 10^8m/s)/(4.27×10^−11m) = 7.025*10^18
therefore, frequency= ( 3.0 * 10^8m/s)/(4.27×10^−11m) = 7.025*10^18