The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 57EAP
(a)
To determine
To Calculate: The energy of a single photon with the given wavelength.
(b)
To determine
To Find: The number of photons emitted per second by the given bulb.
(c)
To determine
To Explain: Particle nature of light is not observed in everyday life.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
For the purpose of this exercise, we consider the Earth as a blackbody at a temperature of 300K.
a. Assuming that it is spherical with a radius equals to 6370 km, calculate the total amount energy emitted by the Earth (Hint: The total amount of energy emitted by a surface = amount of energy emitted per unit area x area of the surface).
b. What wavelength range would you recommend to measure radiation emitted by the Earth using a satellite mounted sensor?
Answer the following
A. A comet has just passed the Earth and its peak emission is observed at 15000 nm. Determine in which region of the electromagnetic spectrum (e.g. X-ray, infrared, visible, ultraviolet, ...) the peak emission wavelength resides. What is the temperature of the comet?
B. Within the Solar System, a convenient unit of measurement is the Earth-Sun distance, called an astronomical unit (AU). For bigger distances, we use the light year (LY), the distance that light travels in one year. We can expand our lingo to include other measures of distance, for example, light days, light minutes, and light hours. Starting with the values you can look up in the Appendices for the speed of light and the astronomical unit, calculate how many “light minutes” there are in 1 AU.
C. What is the observable universe? How big is it?
Use Max Planck's quantum theory to explain the following behaviour of photoelectrons.
a, Low-intensity light does not release any photoelectrons. What will happen if the light is made brighter? Explain your reasoning.
b, Low-intensity light releases photoelectrons. What will happen if the light is made brighter? Explain your reasoning.
c, Low-intensity light does not release any photoelectrons. What will happen if the frequency of the light is gradually increased? Explain your reasoning
Chapter 5 Solutions
The Cosmic Perspective (9th Edition)
Ch. 5 - Prob. 1VSCCh. 5 - Prob. 2VSCCh. 5 - Prob. 3VSCCh. 5 - Prob. 4VSCCh. 5 - Prob. 5VSCCh. 5 - Prob. 1EAPCh. 5 - Prob. 2EAPCh. 5 - Why do we say that light is an...Ch. 5 - Prob. 4EAPCh. 5 - List the different forms of light in order from...
Ch. 5 - Prob. 6EAPCh. 5 - Prob. 7EAPCh. 5 - What is electrical charge? Will an electron and a...Ch. 5 - Describe the phase changes of water as you heat...Ch. 5 - Prob. 10EAPCh. 5 - Prob. 11EAPCh. 5 - Prob. 12EAPCh. 5 - Prob. 13EAPCh. 5 - Prob. 14EAPCh. 5 - Prob. 15EAPCh. 5 - Prob. 16EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 19EAPCh. 5 - Prob. 20EAPCh. 5 - Prob. 21EAPCh. 5 - Prob. 22EAPCh. 5 - Prob. 23EAPCh. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Does It Make Sense? Decide whether the statement...Ch. 5 - Prob. 27EAPCh. 5 - Prob. 28EAPCh. 5 - Prob. 29EAPCh. 5 - Prob. 30EAPCh. 5 - Prob. 31EAPCh. 5 - Prob. 32EAPCh. 5 - Prob. 33EAPCh. 5 - Prob. 34EAPCh. 5 - Prob. 35EAPCh. 5 - Choose the best answer to each of the following....Ch. 5 - Prob. 39EAPCh. 5 - Prob. 40EAPCh. 5 - Prob. 41EAPCh. 5 - Prob. 42EAPCh. 5 - Prob. 43EAPCh. 5 - Atomic Terminology Practice II. What are the...Ch. 5 - Prob. 45EAPCh. 5 - Prob. 46EAPCh. 5 - Prob. 47EAPCh. 5 - Prob. 48EAPCh. 5 - Prob. 49EAPCh. 5 - Prob. 50EAPCh. 5 - Prob. 51EAPCh. 5 - Human Wattage. A typical adult uses about 2500...Ch. 5 - Electric Bill. Your electric utility bill probably...Ch. 5 - Prob. 54EAPCh. 5 - Prob. 55EAPCh. 5 - Prob. 56EAPCh. 5 - Prob. 57EAPCh. 5 - Prob. 58EAPCh. 5 - Prob. 59EAPCh. 5 - Prob. 60EAPCh. 5 - Prob. 61EAP
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
- A perfect black body has its surface temperature 27 cº Determine : Maximum radiation wavelength? Black body radiation intensity? The rate of energy released from 2m² Tungsten wire had its radiating surface area 8mm² and its temperature 2100K, considering that the wire is an ideal black body, Calculate the energy that the wire radiates in 10 minutes. Suppose the surface temperature of the Sun were about 12,000K, rather than 6000K. a. How much more thermal radiation would the Sun emit? b. What would happen to the Sun's wavelength of peak emission? c. Do you think it would still be possible to have life on Earth? Explain /A The energy radiated by a black body at 2300K is found to have the maximum at a wavelength 1260 nm, its emissive power being 8000W/m2. When the body is cooled to a temperature T K, the emissive power is found to decrease to 500W/m2. Find : (i) the temperature T k (ii) the wave length at which intensity of emission in maximum at the Te / Black body becomes yellow with λ…arrow_forwardYou have two lightbulbs of different power and color, as indicated in (Figure 1). One is a 150-WW red bulb, and the other is a 40-WW blue bulb. Which bulb emits more photons per second? Which bulb emits photons of higher energy? Calculate the number of photons emitted per second by each bulb. Take λred=640nm�red=640nm and λblue=430nm�blue=430nm. (Most of the electromagnetic radiation given off by incandescent lightbulbs is in the infrared portion of the spectrum. For the purposes of this problem, however, assume that all of the radiated power is at the wavelengths indicated.)arrow_forwardOn a certain day, light is shining perpendicularly on the surface of the earth with an intensity of 713 W/m². Assuming that all the photons in the light have the same wavelength (in vacuum) of 733 nm, determine the number of photons per second per square meter that reach the earth. Enter your answer in scientific notation. If your answer is 5.14 x 104, input 5.14e+4 as your answer.arrow_forward
- n = 5 n = 4 3. Refer to the illustration on the right. In a set of experiments on a hypothetical one-electron atom, you measure the wavelengths of the photons emitted from transitions ending in the ground state (n=1). You also observe that it takes 15 eV to ionize this atom. (a) What is the energy of the atom in each of the levels (i.e. n=1, n=2, n=3, n=4, n=5)? (b) If an electron made a transition from the n=4 to the n=2 level, what wavelength of light n = 3 n = 2 would it emit? n = 1 A = 73.86 nm A = 75.63 nm A=79.76 nm A = 94.54 nmarrow_forwardWhen a photon has high enough energy and passes through material, it can disappear and turn into one electron and one positron, in a process that is called "electron positron pair production". Part A In order for the photon to be able to create one electron and one positron, what must the minimum energy of the photon be? (electron/positrion charge is F1.6 10-19 C, electron/positron mass is 9.1 10-31 kg) Express your answer with the appropriate units. E= μA Value Submit Request Answer Units ?arrow_forwardThe figure at the right shows transitions between three states of a molecule (labeled E1, E2, and E3) that are observed through the emission and absorption of photons in a pair of experiments, A and B.1. Which transition is associated with the emission of the photon of the longest wavelength?a b c d e2. Which transition is associated with the absorption of the photon of the shortest wavelength?a b c d e 3. If a cold gas of these molecules was in the atmosphere of a star that was emitting a continuous spectrum, you would expect to see some dark lines across the continuous spectrum from that star. This is because the molecules in the atmosphere of the star absorb some of the light emitted by the star. Which frequencies would you expect to be significantly blocked by passing through the cold gas?a. (E2 - E1)/hb. (E3 E1)/hc. (E3 E2)/hd. None of them.a b c darrow_forward
- 1. What is the wavelength of a radio photon from an AM radio station that broadcasts at 1470 kilohertz? Express your answer to three significant figures and include the appropriate units. 2. What is the energy of a radio photon from the same station? Express your answer to three significant figures and include the appropriate units. For question 1 I am not sure how to solve it because the frequency is in kilohertz and I don't know how to convert it into something that I can use. For the speed of light in this question, would it be best to use 3 x 10^8 m/s or 3 x 10^5 km/s? For question 2 I have the formula to use, I'm just uncertain of how to use it.arrow_forwardChoose the correct statements concerning the elec- tromagnetic spectrum given off by stars. (Give ALL correct answers, i.e., B, AC, BCD...)A) If we see a blue star and a red star in a nearby star cluster, we know the red star is hotter.B) Blue photons are more energetic than red photons.C) Hot stars are much brighter than cool stars of the same size and distance from the Earth.D) Blue photons (blue light) have a longer wavelength than red photons.E) A hot star will be more red in color than a cooler star. F) All stars are the same color as our Sun.arrow_forwardConsider two beams of light, which are shining onto perfectly absorbent black barrels. The amplitude of Beam 1 is the greater than the amplitude of Beam 2 (A₁ = 2A₂), and the wavelength of Beam 1 is longer than the wavelength of Beam 2 (₁ = 32₂/2). Is the total energy in Beam 1 greater than, less than, or equal to the total energy in Beam 2? Explain your reasoning. a) b) Is the number of photons in Beam 1 greater than, less than, or equal to the number of photons in Beam 2? First, explain your reasoning qualitatively, then determine the number of photons in Beam 1 if there are 2. 10° photons in Beam 2. The electric field from Beam 1 is drawn again on the axes below. On the same axes, draw another beam (Beam 3) that has the same number of photons as Beam 1, but is made of redder light. Pay attention to both the wavelength and the amplitude of the wave. Explain your reasoning. Ē AA Beam 1 Beam 2arrow_forward
- A photon has wavelength of (λ = 695 pm). Does this photon have enough energy to ionize a hydrogen atom? Show DETAILED calculations to support your answer in the following format. It's a must for me! Its not that complex of a question. you guys have answered a question like this before. please and thank you. What are you solving for? What should be the units of your final answer? What information are you given? What information do you need? How will you connect the information you have and the information you need to solve this problem? (Provide a unit plan) Solve the problem. Be sure to show all units and write clearly. Does your answer make sense? How do you know? Thank youarrow_forwardIron has a magnetic moment of 2.22 Bohr magnetons per atom and a density of 7.87-103 kg.m-3. Calculate the expected magnetization of iron at 0 K and describe any assumptions that you have made. How would you expect this magnetization of iron to vary as temperature is increased. How does the number of Bohr magnetons per atom change from 0 K to 300 K. Why does a piece of iron typically not exhibit high magnetization at room temperature (unless it has been "magnetized")?arrow_forwardFor this assignment, your job is to answer each of the following with a brief explanation of the mathematics used to get there. Explain why different elements produce different spectral absorption and emission lines. (1.5 pts) Calculate the wavelength of a photon that has an energy of 4.96 eV. (Hint: h*c {Planck's constant * the speed of light }= 1240 eV*nm; 1.5 pts) What type of radiation/light (from the electromagnetic spectrum) is the photon from the previous question? (1 pt) Why is it that radio telescopes need to be so large or organized in arrays? (1 pt)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON