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Ultraviolet portion of the electromagnetic spectrum

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Reference no: EM131430260

The rays of the Sun that cause tanning and burning are in the ultraviolet portion of the electromagnetic spectrum. These rays are categorized by wavelength: So-called UV-A radiation has wavelengths in the range of 320-380 nm, whereas UV-B radiation has wavelengths in the range of 290-320 nm.

Part A: Calculate the frequency of light that has a wavelength of 335 nm.

Part B: Calculate the energy of a mole of 335-nm photons.

Part C: Which are more energetic, photons of UV-A radiation or photons of UV-B radiation?

Part D: The UV-B radiation from the Sun is considered a greater cause of sunburn in humans than is UV-A radiation. Is this observation consistent with your answer to part (c)?

Reference no: EM131430260

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