General Physics, 2nd Edition
2nd Edition
ISBN: 9780471522782
Author: Morton M. Sternheim
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 26, Problem 8E
To determine
The number of photons per square meter is incident on the earth per second.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Monochromatic light of frequency 6.0 ×1014 Hz is produced by a laser. The power emitted is 2.0 ×10-3 W. (a) What is the energy of a photon in the light beam? (b) How many photons per second, on an average, are emitted by the source?
15.(a)What is the frequency of an x-ray photon whose momentum is 1.1x 1023 kg m/s?
(b) How much energy must a photon have if it is to have the momentum of a 10-MeV
proton?
(a) If the average frequency emitted by a 120 W light bulb is 5.00 * 10^14 Hz and 10.0% of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second? (b) At what distance would this correspond to 1.00 * 10^11 visible-light photons per cm2 per second if the light is emitted uniformly in all directions?
Chapter 26 Solutions
General Physics, 2nd Edition
Ch. 26 - Prob. 1RQCh. 26 - Prob. 2RQCh. 26 - Prob. 3RQCh. 26 - Prob. 4RQCh. 26 - Prob. 5RQCh. 26 - Prob. 6RQCh. 26 - Prob. 7RQCh. 26 - Prob. 1ECh. 26 - Prob. 2ECh. 26 - Prob. 3E
Ch. 26 - Prob. 4ECh. 26 - Prob. 5ECh. 26 - Prob. 6ECh. 26 - Prob. 7ECh. 26 - Prob. 8ECh. 26 - Prob. 9ECh. 26 - Prob. 10ECh. 26 - Prob. 11ECh. 26 - Prob. 12ECh. 26 - Prob. 13ECh. 26 - Prob. 14ECh. 26 - Prob. 15ECh. 26 - Prob. 16ECh. 26 - Prob. 17ECh. 26 - Prob. 18ECh. 26 - Prob. 19ECh. 26 - Prob. 20ECh. 26 - Prob. 21ECh. 26 - Prob. 22ECh. 26 - Prob. 23ECh. 26 - Prob. 24ECh. 26 - Prob. 25ECh. 26 - Prob. 26ECh. 26 - Prob. 27ECh. 26 - Prob. 28ECh. 26 - Prob. 29ECh. 26 - Prob. 30ECh. 26 - Prob. 31ECh. 26 - Prob. 32ECh. 26 - Prob. 33ECh. 26 - Prob. 34E
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
- Show that the energy E in eV of a photon is given by E=1.241106 m/A. where A is its wavelength in meters.arrow_forwardWhat is the wavelength of (a) a 12-keV X-ray photon; (b) a 2.O-MeV y -ray photon?arrow_forwardWhat is the de Brogue wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?arrow_forward
- What is the energy of a photon whose momentum is 3.01024 kg• m/s ?arrow_forwardWhat is the frequency (per second) and energy per quantum (in joules) of x-ray beams of wavelength 0.7 1 Å (Mo Ka) and 1.54 Å (Cu Ka)?arrow_forwardA light detector (your eye) has an area of 2.00*10-6 m2 and absorbs 80% of the incident light, which is at wavelength 500 nm. The detector faces an isotropic source, 3.00 m from the source. If the detector absorbs photons at the rate of exactly 4.000 s-1, at what power does the emitter emit light?arrow_forward
- A flashlight emits 1.0W of light energy. Assuming a frequency of 5.2 x 10^14 Hz for the light, determine the number of photons given off by the flashlight per second.arrow_forwardHelp Mearrow_forwardIf all the energy from a 107 W light bulb is emitted on average at 666.0 nm, how many 666.0 nm photons must be emitted each second to account for all 107 W ?arrow_forward
- A photon with wavelength X scatters off an electron at rest, at an angle with the incident direction. The Compton wavelength of the electron Ac = 0.0024 nm. a) For λ = 0.0006 nm and 0 = 53 degrees, find the wavelength X' of the scattered photon in nanometres. b) Obtain a formula for the energy of the electron Ee after collision, in terms of the universal constants h, c and the variables X, X' and Ac. The answer must be expressed in terms of these variables only. (Please enter an algebraic expression using latex format; do not input any numerical values) c) Using the energy conservation condition, find the value of the electron energy Ee after scattering in units of keV. d) Write an algebraic expression for the electron's momentum pe in terms of its energy Ee, its mass me and the speed of light c. e) What is the de Broglie wavelength of the scattered electron ? Express your answer in terms of Ee, me, and X and c. f) Find the value of the de Broglie wavelength of the scattered electron…arrow_forwardX-ray photons of wavelength 0.0248 nm are incident on a target and the Compton-scattered photons are observed at 80.0° above the photons' incident line of travel. [Use relativistic units for this problem!](a) What is the momentum of the incident photons? eV/c(b) What is the momentum (magnitude and angle) of the scattered electrons? eV/c°magnitude=61802.35 angel=?arrow_forwardA sodium lamp emits light at the power P = 100 W and at the wavelength = 593 nm, and the emission is uniformly in all directions. (a) At what rate are photons emitted by the lamp? (b) At what distance from the lamp will a totally absorbing screen absorb photons at the rate of 1.00 photon /cm²s? (c) What is the rate per square meter at which photons are intercepted by a screen at a distance of 2.40 m from the lamp? (a) Number (b) Number i MI (c) Number i Units Units Units <arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax