Question #54178
(i) Calculate the power radiated (in Watts) by the surface of a cylindrical wire of length 5.0 cm
and radius 0.12 mm that is heated to 3300 K by an electric current. (ii) The energy required for
the ionization of a certain atom is 3.44 aJ (aJ = 10-18 J). The absorption of a photon of unknown
wavelength ionizes the atom and ejects an electron with velocity 1.03 Mm s-1
(1Mm = 106m).
Calculate the wavelength (in nanometer) of the incident radiation.
and radius 0.12 mm that is heated to 3300 K by an electric current. (ii) The energy required for
the ionization of a certain atom is 3.44 aJ (aJ = 10-18 J). The absorption of a photon of unknown
wavelength ionizes the atom and ejects an electron with velocity 1.03 Mm s-1
(1Mm = 106m).
Calculate the wavelength (in nanometer) of the incident radiation.
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