College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Question
Chapter 27, Problem 4MCQ
To determine
To check: That which of the following observations can not be explained by the
a. Photocurrent instantly appears after the light is turned on.
b. The magnitude of photocurrent is directly proportional to the intensity of light.
c. For each intensity of light there is a maximum value of photocurrent.
d. The stopping potential difference does not depend on the intensity of light.
e. The cutoff frequency does not depend on the intensity of light.
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Check out a sample textbook solutionStudents have asked these similar questions
The photoelectric effect provided evidence that supported the early suggestion by Max Planck that
electromagnetic waves exist as discrete packets of energy.
a. Describe the energy transformations that occur during the photoelectric effect.
b. If the incident light was not causing the emission of any electrons from the target metal, how
could the light be changed to start causing emission of electrons? Explain your answer.
c. Rather than changing the light source, explain why changing the target metal from part (c) may
allow for the detection of emitted electrons.
QUESTION
You have a large, healthy philodendron that you carelessly leave in total darkness while you are on vacation. You are surprised to find that it is still alive when you return. What has the plant been using for an energy source while in the dark?
A. When light energy is not available, plants can derive energy from inorganic molecules.
B. Even though the plant received no visible light, it was able to use the short-wave part of the electromagnetic spectrum (gamma rays and X-rays) to carry out photosynthesis.
C. While it did have access to light, the plant stored energy in the form of sugars or starch, and it was able to derive energy from the stored molecules during your vacation.
D. Even though it can't carry out the light reactions, the plant can still produce sugars because the Calvin cycle doesn't require light.
E. None of the above.
PHOTOELECTRIC EFFECT
I. Which of the following observations from the photoelectric effect is NOT VIOLATION of classical physics??
A. Light can eject electrons from semi conductive material
B. Light intensity does not influence the kinetic energy of ejected electrons
C. Electrons are ejected immediately after impact from light
II. According to wave theory, what is the nessesary to eject electrons from surface??
A. A frequency that is higher than that of the electrons at the surface
B. A very small number of photons
C. Enough energy to overcome the binding energy of the electrons
III. The minimum frequency of radiation at which electrons will be ejected is called the threshold frequently go. TRUE OR FALSE??
Chapter 27 Solutions
College Physics
Ch. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Prob. 3RQCh. 27 - Prob. 4RQCh. 27 - Prob. 5RQCh. 27 - Prob. 6RQCh. 27 - Prob. 1MCQCh. 27 - Prob. 2MCQCh. 27 - Prob. 3MCQCh. 27 - Prob. 4MCQ
Ch. 27 - Prob. 5MCQCh. 27 - Prob. 6MCQCh. 27 - Prob. 7MCQCh. 27 - Prob. 8MCQCh. 27 - Prob. 9MCQCh. 27 - Multiple Choice Questions In which of the...Ch. 27 - Prob. 11MCQCh. 27 - Prob. 12MCQCh. 27 - Prob. 13CQCh. 27 - Prob. 14CQCh. 27 - Prob. 15CQCh. 27 - Prob. 16CQCh. 27 - Prob. 17CQCh. 27 - Prob. 18CQCh. 27 - Prob. 19CQCh. 27 - Prob. 20CQCh. 27 - Prob. 1PCh. 27 - Prob. 2PCh. 27 - Prob. 3PCh. 27 - Prob. 4PCh. 27 - 27.1 Black Body Radiation * EST Estimate the...Ch. 27 - Prob. 6PCh. 27 - Prob. 7PCh. 27 - Prob. 8PCh. 27 - Prob. 9PCh. 27 - Prob. 10PCh. 27 - Prob. 11PCh. 27 - Prob. 12PCh. 27 - Prob. 13PCh. 27 - Prob. 14PCh. 27 - Prob. 15PCh. 27 - Prob. 16PCh. 27 - Prob. 17PCh. 27 - Prob. 18PCh. 27 - Prob. 19PCh. 27 - Prob. 20PCh. 27 - Prob. 21PCh. 27 - Prob. 22PCh. 27 - Prob. 23PCh. 27 - Prob. 24PCh. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - Prob. 28PCh. 27 - Prob. 29PCh. 27 - Prob. 30PCh. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Prob. 34PCh. 27 - Prob. 35PCh. 27 - Prob. 36PCh. 27 - Prob. 37PCh. 27 - Prob. 38PCh. 27 - Prob. 39PCh. 27 - Prob. 40PCh. 27 - Prob. 41PCh. 27 - 42. * EST Estimate the temperature of the Sun's...Ch. 27 - Prob. 44GPCh. 27 - Prob. 46GPCh. 27 - Prob. 47GPCh. 27 - Prob. 48GPCh. 27 - Prob. 49GPCh. 27 - Prob. 50GPCh. 27 - Prob. 51GPCh. 27 - Prob. 52GPCh. 27 - Prob. 53GPCh. 27 - Prob. 54GPCh. 27 - Prob. 55RPPCh. 27 - Prob. 56RPPCh. 27 - Prob. 57RPPCh. 27 - Prob. 58RPPCh. 27 - Prob. 59RPPCh. 27 - Prob. 60RPPCh. 27 - Prob. 61RPPCh. 27 - Prob. 62RPPCh. 27 - Prob. 63RPPCh. 27 - Prob. 64RPP
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- What two pieces of evidence allowed the first calculation of me, the mass of the electron? (a) The ratios qe/me and qp/mp. (b) The values of qe and EB. (c) The ratio qe/me and qe. Justify your response.arrow_forwardTanning salons use "safe" UV with a longer wavelength than some of the UV in sunlight. This "safe" UV has enough photon energy to trigger the tanning mechanism. Is it likely to be able to cause cell damage and induce cancer with prolonged exposure?arrow_forwardInsulators (nonmetals) have a higher BE than metals, and it is more difficult for photons to eject electrons from insulators. Discuss how this relates to the free charges in metals that make them good conductors.arrow_forward
- How is the frequency of light related to its ability to produce the photoelectric effect? A. Low-frequency light does not produce the photoelectric effect. B. The frequency of the light is not related to the photoelectric effect C. High-frequency light does not produce the photoelectric effect D. All frequencies of light produce the photoelectric effectarrow_forwardQUESTION TEXT A metal has a work function of 3.1eV and is illuminated by light of wavelength λ = 320 nm. What is the maximum velocity of the photoelectrons emitted? Select one: a. 2.7 x 106 m/s b. 3.2 x 107 m/s c. 5.9 x 105 m/s d. 5.24 x 105 m/sarrow_forwardFor each of the following questions indicate true or false, then fully explain your answer? You may use examples to illustrate your answer. i The wave associated with moving air is called de Broglie wave ii. A football moving with 500 km/h is having wave nature ii. Light consists of particles called photons iv. Current is not shows wave nature X ray is not effected by magnetic and electric fields v.arrow_forward
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