Which form of electromagnetic radiation has the longest wavelengths? A) infrared

Question

Which form of electromagnetic radiation has the longest wavelengths? A) infrared radiation B) microwaves C) x-rays D) gamma rays E) radio waves Which of the following frequencies corresponds to light with the longest wavelength? A) 8.50 times 10^20 s^-1 B) 9.12 times 10^12 s^-1 C) 3.00 times 10^13 s^-1 D) 4.12 times 10^5 s^-1 E) 3.20 times 10^13 s^-1 Yellow light can have a wavelength of 572 nm. The energy of a photon of this light is A) 2.88 times 10^18 J B) 5.72 times 10^-7 J C) 5.24 times 10^-14 J D) 3.47 times 10^-19 J E) 1.14 times 10^-31 J When light strikes the surface of a metal with a frequency BELOW the threshold frequency, electron are A) not emitted B) emitted with a energy equal to the light's intensity C) emitted with a energy increasing linearly with the light's intensity D) emitted with a energy decreasing linearly with the light's intensity E) none of the above The four lines observed in the visible emission spectrum of hydrogen tell us that: A) We could observe more lines if we had a stronger prism. B) The spectrum is continuous. C) The hydrogen molecules they came from have the formula H_4. D) Only certain energies are allowed for the electron in a hydrogen atom. E) There are four electrons in an excited hydrogen atom.

Explanation / Answer

Radiowaves of the electromagnetic radiation has the longest wavelength.

The higher the energy, the lower the wave length the electromagnetic radiation

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