Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
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Chapter 40, Problem 8OQ
To determine
The phenomena that clearly demonstrates the wave nature of electrons.
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Check out a sample textbook solutionStudents have asked these similar questions
Q. 12: Photoelectric emission takes place
(a). when incident wavelength is greater
than threshold wavelength
when incident wavelength is less than
threshold wavelength
(b)
(c)
(d)
when incident frequency is greater than
threshold frequency
at any frequency
Einstein's interpretation of the photoelectric effect included which of the following?
The high energy wave was able to excite the metal.
A photon could carry sufficient energy to knock off an electron.
Light was acting as a particle with quantized energy.
a
I only
b
II only
c
II and III only
d
I, II, and III only
Photoelectrons with a maximum kinetic energy of 7.95 eV are emitted
from a metal when it is illuminated by ultraviolet radiation with a
wavelength of 1.25 × 10-7 m.
(i)
Calculate the energy of the incident photons in electronvolts.
(ii) Calculate the wavelength of the radiation (in nanometres)
corresponding to the lowest energy photons that can free electrons
from the metal.
(iii) How do you explain the fact that, when infrared radiation is shone
on this metal, no photoelectrons are emitted?
Chapter 40 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
Ch. 40.1 - Prob. 40.1QQCh. 40.2 - Prob. 40.2QQCh. 40.2 - Prob. 40.3QQCh. 40.2 - Prob. 40.4QQCh. 40.3 - Prob. 40.5QQCh. 40.5 - Prob. 40.6QQCh. 40.6 - Prob. 40.7QQCh. 40 - Prob. 1OQCh. 40 - Prob. 2OQCh. 40 - Prob. 3OQ
Ch. 40 - Prob. 4OQCh. 40 - Prob. 5OQCh. 40 - Prob. 6OQCh. 40 - Prob. 7OQCh. 40 - Prob. 8OQCh. 40 - Prob. 9OQCh. 40 - Prob. 10OQCh. 40 - Prob. 11OQCh. 40 - Prob. 12OQCh. 40 - Prob. 13OQCh. 40 - Prob. 14OQCh. 40 - Prob. 1CQCh. 40 - Prob. 2CQCh. 40 - Prob. 3CQCh. 40 - Prob. 4CQCh. 40 - Prob. 5CQCh. 40 - Prob. 6CQCh. 40 - Prob. 7CQCh. 40 - Prob. 8CQCh. 40 - Prob. 9CQCh. 40 - Prob. 10CQCh. 40 - Prob. 11CQCh. 40 - Prob. 12CQCh. 40 - Prob. 13CQCh. 40 - Prob. 14CQCh. 40 - Prob. 15CQCh. 40 - Prob. 16CQCh. 40 - Prob. 17CQCh. 40 - The temperature of an electric heating element is...Ch. 40 - Prob. 2PCh. 40 - Prob. 3PCh. 40 - Prob. 4PCh. 40 - Prob. 5PCh. 40 - Prob. 6PCh. 40 - Prob. 7PCh. 40 - Prob. 8PCh. 40 - Prob. 9PCh. 40 - Prob. 10PCh. 40 - Prob. 11PCh. 40 - Prob. 12PCh. 40 - Prob. 14PCh. 40 - Prob. 15PCh. 40 - Prob. 16PCh. 40 - Prob. 17PCh. 40 - Prob. 18PCh. 40 - Prob. 19PCh. 40 - Prob. 20PCh. 40 - Prob. 21PCh. 40 - Prob. 22PCh. 40 - Prob. 23PCh. 40 - Prob. 25PCh. 40 - Prob. 26PCh. 40 - Prob. 27PCh. 40 - Prob. 28PCh. 40 - Prob. 29PCh. 40 - Prob. 30PCh. 40 - Prob. 31PCh. 40 - Prob. 32PCh. 40 - Prob. 33PCh. 40 - Prob. 34PCh. 40 - Prob. 36PCh. 40 - Prob. 37PCh. 40 - Prob. 38PCh. 40 - Prob. 39PCh. 40 - Prob. 40PCh. 40 - Prob. 41PCh. 40 - Prob. 42PCh. 40 - Prob. 43PCh. 40 - Prob. 45PCh. 40 - Prob. 46PCh. 40 - Prob. 47PCh. 40 - Prob. 48PCh. 40 - Prob. 49PCh. 40 - Prob. 50PCh. 40 - Prob. 51PCh. 40 - Prob. 52PCh. 40 - Prob. 53PCh. 40 - Prob. 54PCh. 40 - Prob. 55PCh. 40 - Prob. 56PCh. 40 - Prob. 57PCh. 40 - Prob. 58PCh. 40 - Prob. 59PCh. 40 - Prob. 60APCh. 40 - Prob. 61APCh. 40 - Prob. 62APCh. 40 - Prob. 63APCh. 40 - Prob. 64APCh. 40 - Prob. 65APCh. 40 - Prob. 66APCh. 40 - Prob. 67APCh. 40 - Prob. 68APCh. 40 - Prob. 69APCh. 40 - Prob. 70APCh. 40 - Prob. 71APCh. 40 - Prob. 72CPCh. 40 - Prob. 73CPCh. 40 - Prob. 74CPCh. 40 - Prob. 75CPCh. 40 - Prob. 76CP
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- Why are X-rays emitted only for electron transitions to inner shells? What type of photon is emitted for transitions between outer shells?arrow_forwardWhich aspects of the photoelectric effect cannot be explained by classical physics?arrow_forwardWhen the absorption spectrum of hydrogen at room temperature is analyzed, absorption lines for the Lyman series are found, but none are found for the Balmer series. What does this tell us about the energy state of most hydrogen atoms at room temperature?arrow_forward
- The following observations are made about the photoelectric effect : 1. No electrons are emitted below the threshold frequency 2. Above the threshold frequency, the energy of the emitted electrons depends only on the frequency of light 3. Increasing the intensity of the light increases the number of emitted electrons Which, if any, of these observations can be explained by a wave theory of light? A B C D All of them 1 and 2 only 2 and 3 only None of themarrow_forwardPhotons of wavelength 248.6 nm strike a metal whose work function is 3.5 eV. What is the KE of the most energetic photoelectron? a) 1.5 eV b) 2.5 eV c) 3.5 eV d) none of these.arrow_forwardWhich statement regarding the photoelectric effect is FALSE? Electrons can be ejected with energy of light used to strike the surface of the metals greater than the threshold energy. The current decreases with decreasing intensity of the light. The number of electrons ejected is proportional to the number of photons striking the metal surface. The wavelength limit sufficient for electron ejection is the same for all metals.arrow_forward
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- In an experiment of photoelectric effect, no current flows through the circuit when the voltage across the anode and cathode is -1.70 V. Calculate a) b) If it is illuminated by ultraviolet radiation of frequency 1.70 x 1015 Hz. 5. the work function the threshold wavelength of the metal (cathode) [Ans: 8.55×1019 J, 233 nm]arrow_forwardA process of photoelectric effect is shown in the sketch. What happens to the kinetic energy of the ejected electrons if the original light source is replaced by a source of 400 nm? photon of wavelength 500 nm decreases by a factor of 4/5 decreases er this question more information is needed to an increases remains the same electrons ejectedarrow_forward3:42 .ull 5G Done 2 of 2 John Isner holds the ATP's (Association of Tennis Professionals) official record for the fastest serve at 253 km/h. Calculate the de Broglie wavelength of a tennis ball with the standard weight of 54.6 grams. Give your answer in 1034 m (for example, if your answer is 5.6x1034 m, then enter 5.6). This should give you a good idea of why one cannot expect to observe interference affects using tennis balls rather then, for example, electrons. +)arrow_forward
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