List these types of electromagnetic radiation in order of (i) increasing frequency and (ii) decreasing energy per photon.
a. gamma rays
b. ultraviolet radiation
c. infrared radiation
d. microwaves
List these types of electromagnetic radiation in order of (i) increasing frequency and (ii) decreasing energy per photon.
a. gamma rays
b. ultraviolet radiation
c. infrared radiation
d. microwaves
Calculate the frequency of each wavelength of electromagnetic radiation: a. 632.8 nm (wavelength of red light from helium–neon laser) b. 503 nm (wavelength of maximum solar radiation) c. 0.052 nm (wavelength contained in medical X-rays)
Calculate the energy of a photon of each wavelength and state what part of the electromagnetic spectrum is associated with the wavelength.
a. 105 nm
b. 715 nm
c. 2.52 cm
A laser pulse with wavelength 532 nm contains 1.85 mJ of energy. How many photons are in the laser pulse?
A heat lamp produces 17.7 watts of power at a wavelength of 6.5 μm. How many photons are emitted per second? (1 watt = 1 J/s)
Determine the energy of 1 mol of photons for each kind of light. (Assume three significant figures.) a. infrared radiation (1500 nm) b. visible light (500 nm) c. ultraviolet radiation (150 nm)