Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7, Problem 7PEB
To determine
The reason that a red light used in a dark room does not affect the film during developing.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the combined energy of 1 mole of 532 nm photons (green light)?
225 kJ
2.33×1023 J
3.73x10-19 J
2.33×10-9 J
3.73x10-28 J
Determine the number of photons emitted per second by a laser that emits red light of
wavelength 650 nm and has a power output of 2.00×10 w .
It takes 492 kJ of energy to remove one mole of electrons from the atoms on the surface of solid gold. What is the speed of the ejected electrons (in m/s), if the incoming light has a wavelength of 200.0 nm
Chapter 7 Solutions
Integrated Science
Ch. 7.1 - Prob. 1SCCh. 7.1 - Prob. 2SCCh. 7.1 - Prob. 3SCCh. 7.2 - Prob. 4SCCh. 7.2 - Prob. 5SCCh. 7.2 - Prob. 6SCCh. 7.2 - Prob. 7SCCh. 7.3 - Prob. 8SCCh. 7.3 - Prob. 9SCCh. 7.4 - Prob. 10SC
Ch. 7.4 - Prob. 11SCCh. 7.5 - Prob. 12SCCh. 7 - What determines if an electromagnetic wave emitted...Ch. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - Prob. 10CQCh. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 15CQCh. 7 - Prob. 16CQCh. 7 - Prob. 17CQCh. 7 - Prob. 18CQCh. 7 - Prob. 1PEACh. 7 - Prob. 2PEACh. 7 - Prob. 3PEACh. 7 - Prob. 4PEACh. 7 - Prob. 5PEACh. 7 - Prob. 6PEACh. 7 - Prob. 7PEACh. 7 - Prob. 8PEACh. 7 - Prob. 9PEACh. 7 - Prob. 10PEACh. 7 - Prob. 1PEBCh. 7 - Prob. 2PEBCh. 7 - Prob. 3PEBCh. 7 - Prob. 4PEBCh. 7 - Prob. 5PEBCh. 7 - Prob. 6PEBCh. 7 - Prob. 7PEBCh. 7 - Prob. 8PEBCh. 7 - Prob. 9PEBCh. 7 - Prob. 10PEB
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What is the momentum of a 589-nm yellow photon?arrow_forwardQ2: A Light having a frequency of 9.0 x 10¹4 Hz incident on a metal surface ejects photo-electrons having energy of 1.1 eV. Calculate the work function for this metal in Sl units and eV units. (h= 6.62x10-³4 J-Hz¹), (1 eV = 1.6 x 10-¹⁹ J)arrow_forwardWhat will be the energy associated with a red photon, if the wavelength of the red light is 650 nm? [Hint: Find the frequency of red light first to calculate the energy. Recall: c = .f] A. 650x10° J B. 6.5x10 J C. 4.6x1014 J D. 3.0x10-19 J E. 3.0x1019 Jarrow_forward
- A potassium surface is illuminated by a monochromatic laser light with a wavelength of 400 nm. Determine the maximum speed of a photoelectron emitted from this surface if the potassium surface has a work function of 2.30 eV. me=9.11×10−31kgarrow_forward3. Mr. Vamsi Krishna has executed photo-electric effect with a light source of wavelength 400 nm. After completion of his experiment, Mr. Bhanu Prakash has executed same experiment with another light source of wavelength 600 nm. Identify in which case, ejected electrons will have greater kinetic energy? (assume that in both the cases electrons are ejected from Tungsten metal with work function of 4.5 eV)arrow_forward7. The wave of wavelength 5900 Å emitted by any atom or molecule must have some finite total length which is known as the coherence length. For sodium light, this length is 2.4 cm. The number of oscillation in this length will be (a) 4.068 x 10 (c) 4.068 x 106 (b) 4.068 x 10* (d) 4.068 x 10arrow_forward
- When light with a wavelength of 208 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.59 × 10-19 J. Determine the wavelength (in nm) of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface.arrow_forwardQ2:- Light from the sun arrives at the earth, an average of 1.48 × 10" m away, at the rate of 1.4 kW/m? of area perpendicular to the direction of the light. Assume that sunlight is monochromatic with a frequency of 4.95 × 1014 Hz. (a) How many photons fall per second on each square meter of the earths surface directly facing the sun? (b) What is the power output of the sun, and how many photons per second does it emit?arrow_forward5. a) A monochromatic light of wavelength 450 nm is incident on a metal surface in a vacuum tube. i. Calculate the energy of photon. ii. If the maximum wavelength of the light to release the electron iii. Calculate the maximum kinetic energy (in electron volts) of the photoelectron emitted with a light of wavelength 450 nm.arrow_forward
- ۱۰٥ من ۱۰۰ Quiz: Q!) Parallel rays of green mercury light with a wavelength of 546 nm pass through a slit covering a lens with a focal length of 60.0 cm. In the focal plane of the lens the distance from the central maximum to the first minimum is 10.2mm. What is the width of the slit? Q2) The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum kinetic energy of the electrons ejected from this tungsten surface by ultraviolet radiation of frequency 1.45 x 1015 Hz. Express the answer in electron volts. (Note: Assume the h 6.63*10-34 J.s). sameer hamoodi 6:16p äc luli 21.07.01arrow_forward1. Suppose that light of total intensity 1.0 W/cm2 falls on a clean iron sample 1.0 cm2 in area. Assume that the iron sample reflects 96% of the light and that only 3.0% of the absorbed energy lies in the violet region of the spectrum above the threshold frequency.(a) What intensity is actually available for the photoelectric effect?(b) Assuming that all the photons in the violet region have an effective wavelength of 250nm, how many electrons will be emitted per second?(c) Calculate the current in the phototube in amperes.(d) If the cutoff frequency is ?0 = 1.1 1015 Hz, find the work function, ?, for iron(e) Find the stopping voltage for iron if photoelectrons are produced by light with 250 nm. 2. (a) Show that the spread of velocities caused by the uncertainty principle does not have measurable consequences for macroscopic objects (objects that are large compared with atoms) by considering a 100-g racquetball confined to a room 15 m on a side. Assume the ball is moving at 2.0 m/s…arrow_forward3. A pulsed ruby laser emits light at 694.3 nm. For a 14.0-ps pulse containing 3.00 J of energy, find (a) the physical length of the pulse as it travels through space and (b) the number of photons in it. (c) The beam has a circular cross section of diameter 0.600 cm. Find the number of photons per cubic millimeter. 4. A pulsed laser emits light of wavelength A. For a pulse of duration At having energy TER, find (a) the physical length of the pulse as it travels through space and (b) the number of photons in it. (c) The beam has a circular cross section having diameter d. Find the number of photons per unit volume.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax