A cell phone sends signals at about 850 MHz (1 MHz = 1 × 106 Hz or cycles per second),

(a) What is the wavelength of this radiation?

(b) What is the energy of 1.0 mol of photons with a frequency of 850 MHz?

(c) Compare the energy in part (b) with the energy of a mole of photons of blue light (420 nm).

(d) Comment on the difference in energy between 850 MHz radiation and blue light.

Answer rating: 100% (QA)

a wavelength speed of lightfrequency wavelength 30108850106 wavelength 35 cm b energy hv energy ... View the full answer