Ch.5 - Periodicity & Electronic Structure of Atoms
Chapter 5, Problem 46
(c) What type of electromagnetic radiation are these photons?
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Textbook Question
(b) Fiber optic cable is available in 12 km lengths. How long will it take for a signal to travel that distance assuming that the speed of light in the cable is the same as in a vacuum?
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Textbook Question
Calculate the energies of the following waves in kilojoules per mole, and tell which member of each pair has the higher value.
(a) An FM radio wave at 99.5 MHz and an AM radio wave at 1150 kHz
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Textbook Question
What is the energy of each of the following photons in kilojoules per mole?
(a) v = 5.97 * 1019 s-1
(b) v = 1.26 * 106 s-1
(c) = 2.57 * 102 m
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Textbook Question
(c) What is the color of the light with = 450 nm?
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Textbook Question
The work function of cesium metal is 188 kJ/mol, which corresponds to light with a wavelength of 637 nm. Which of the following will cause the smallest number of electrons to be ejected from cesium?
(a) High-amplitude wave with a wavelength of 500 nm
(b) Low-amplitude wave with a wavelength of 500 nm
(c) High-amplitude wave with a wavelength of 650 nm
(d) Low-amplitude wave with a wavelength of 650 nm
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Textbook Question
The work function of calcium metal is kJ/mol, which corresponds to light with a wavelength of 432 nm. Which of the following will cause the largest number of electrons to be ejected from cesium?
(a) High-amplitude wave with a wavelength of 400 nm
(b) Low-amplitude wave with a wavelength of 400 nm
(c) High-amplitude wave with a wavelength of 450 nm
(d) Low-amplitude wave with a wavelength of 450 nm
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