
Concept explainers
The number of photons per second escaping the opening and having wavelengths between

Answer to Problem 11P
The number of photons per second escaping the opening and having wavelengths between
Explanation of Solution
The wavelength range is between
Write the Plank’s
Here,
Write the equation for
Here,
Put equation (II) in equation (I).
The energy per time leaving the hole can be determined by taking the product of the intensity per wavelength, area and the wavelength range.
Write the equation for the energy per time leaving the hole.
Here,
Write the equation for the area of the hole.
Here,
Put equations (III) and (V) in equation (IV).
Write the equation for the average photon energy.
Here,
Write the equation for
Put equation (II) in the above equation.
Put the above equation in equation (VII).
Write the equation for the number of photons per second escaping the opening.
Here,
Put equations (VI) and (VIII) in the above equation.
Conclusion:
It is given that the temperature of the blackbody is
Substitute ,
Therefore, the number of photons per second escaping the opening and having wavelengths between
Want to see more full solutions like this?
Chapter 40 Solutions
Physics For Scientists And Engineers With Modern Physics, 9th Edition, The Ohio State University
- 3. If the force of gravity stopped acting on the planets in our solar system, what would happen? a) They would spiral slowly towards the sun. b) They would continue in straight lines tangent to their orbits. c) They would continue to orbit the sun. d) They would fly straight away from the sun. e) They would spiral slowly away from the sun. 4. 1 The free-body diagram of a wagon being pulled along a horizontal surface is best represented by A F N B C 0 Ꭰ FN E a) A b) B c) C app app The app 10 app d) e) ס ח D E 10 apparrow_forwardPls help ASAParrow_forwardPls help asaparrow_forward
- Pls help asaparrow_forwardThe acceleration of an object sliding along a frictionless ramp is inclined at an angle 0 is 9. a) g tano b) g cose c) g sino 10. d) g e) zero A 1.5 kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction force of 3.2 N acts against the motion, the cart's acceleration along the horizontal surface will be a) 5.0 m/s² b) 1.6 m/s² c) 2.4 m/s² 11. d) 1.0 m/s² e) 2.7 m/s² What is the net force acting on an object with a mass of 10 kg moving at a constant velocity of 10 m/s [North]? a) 100 N [North] b) 100 N [South] 10 N [North} d) 10 N [South] e) None of these.arrow_forwardModified True/False - indicate whether the sentence or statement is true or false. If the statement is false, correct the statement to make it true. 12. An object in uniform circular motion has a constant velocity while experiencing centripetal acceleration. 13. An object travelling in uniform circular motion experiences an outward centrifugal force that tends to pull the object out of the circular path. 14. An object with less inertia can resist changes in motion more than an object with more inertia. 15. For an object sliding on a horizontal surface with a horizontal applied force, the frictional force will always increase as the applied force increases.arrow_forward
- University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning





