21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
6th Edition
ISBN: 9780393874921
Author: PALEN
Publisher: Norton, W. W. & Company, Inc.
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 42QP
(a)
To determine
The temperature, peak wavelength.
(b)
To determine
The power radiated.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1. A carpenter builds an exterior house wall made of wood 3.0 cm thick. The wood has k = 0.080
W/mk. The interior temperature is 19°C and the exterior surface temperature is 9°C. What is the
rate of heat flow per square meter through this wall?
2. What is the wavelength for the energy maximum of blackbody radiation at 30,000°F?
This is an infrared thermometer image of a house at night. It can be used
to find heat leak in a house.
61
L
https://www.digitaltrends.com/home/use-infrared-thermometer-easily-spot-heat-leaks-house/
a. The bright parts are higher temperature than the dark regions.
b. The bright parts indicate the emitted E-M radiation with longer
wavelength.
c. The bright parts indicate high intensity of E-M radiation.
d. The bright parts indicate the emitted E-M radiation with high
frequency.
e. The brightness of image doesn't mean anything.
A. What is the energy of a 194.0MHz radio-frequency photon?
B. What is the energy of a visible-light photon with a wavelength of 611.0nm?
C. What is the energy of an x-ray photon with a wavelength of 0.236nm?
Chapter 5 Solutions
21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
Ch. 5.1 - Prob. 5.1ACYUCh. 5.1 - Prob. 5.1BCYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - Prob. 4QP
Ch. 5 - Prob. 5QPCh. 5 - Prob. 6QPCh. 5 - Prob. 7QPCh. 5 - Prob. 8QPCh. 5 - Prob. 9QPCh. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Prob. 18QPCh. 5 - Prob. 19QPCh. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - Prob. 22QPCh. 5 - Prob. 23QPCh. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - Prob. 32QPCh. 5 - Prob. 33QPCh. 5 - Prob. 34QPCh. 5 - Prob. 35QPCh. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - Prob. 38QPCh. 5 - Prob. 39QPCh. 5 - Prob. 40QPCh. 5 - Prob. 41QPCh. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Prob. 44QPCh. 5 - Prob. 45QP
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. Does a hot, thin gas emit a continuous spectrum, a bright line spectra with gaps between the lines, or a dark line spectra with all frequencies except the missing (absorbed) one? b. Why do we see dark line spectra when we look at stars? c. Both hydrogen and helium glow and absorb red. Are they the same frequency of red? d. A hot solid iron plate and a hot solid aluminum plate are the same temperature. Do the give off the same range of frequencies?arrow_forwardCan you answer the question?arrow_forwardThe surface temperature of the naked-eye star Capella (in constellation Auriga) is approximately 4,700 degrees Celsius.a) What is the peak frequency (in hertz) and wavelength (in metres AND nanometres) of Capella’s emitted light?b) If you were to look at Capella in the night sky, what colour would you expect it to appear? Why would you expect this colour?arrow_forward
- The Sun has a temperature of approximately 5800 K. a) What is the peak wavelength of light emitted by the Sun? b) How much energy does one photon of this wavelength have? c) How much power is emitted by the Sun if it has an emissivity of 0.9? (The Sun has a radius of 6.96x10^8 m.) d) How much mass is converted to energy every second in the Sun's core to drive its power emission? Please write your answers in the space below and email your work. ALT+510(BOLO ALTHEN+510 (Mac)arrow_forwardThe Sun has a temperature of approximately 5800 K. a) What is the peak wavelength of light emitted by the Sun? b) How much energy does one photon of this wavelength have? c) How much power is emitted by the Sun if it has an emissivity of 0.9? (The Sun has a radius of 6.96x10^8 m.) d) How much mass is converted to energy every second in the Sun's core to drive its power emission? Please write your answers in the space below and email your work. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).arrow_forwardAt the surface of the sun, the temperature is approximately 5800 K. A. How much energy is contained in the electromagnetic radiation filling ten cubic meter of space at the sun's surface? B. Make a qualitative sketch of the radiation spectrum at the temperatures of 3000 K and 3800 K as a function of photon energy (eV). Indicate the peak position of these electromagnetic radiations in relation with the solar radiation spectrum.arrow_forward
- 2. a) At what wavelength is the peak in the thermal ("blackbody") spectrum of the Sun? What about for the Earth? Make sure you show how you got these numbers, and then b) Give a term for the part of the electromagnetic spectrum in which these peaks occur (e.g., x-ray, UV, Visible, IR, microwave, etc.). c) What is the total flux emitted in each case (in W m ²)?arrow_forward4. Assuming a filament in a 100 W light bulb acts as a perfect blackbody (e = 1). what is the temperature of the hottest portion of the filament if it has a surface area of 6.3 105 m²? The Stefan-Boltzmann constant is 5.67 x 10-8 J/(s. m². K*). a) 130.8 K b) 1100.21 K c) 2300.21 K d) 5800.5 K 5. During an evening news broadcast in Helsinki, Finland, the meteorologist indicated that the day's lowest temperature was -6.0 °C. The corresponding value of this temperature on the Fahrenheit scale is ........ a) -7.2 °F b) 4.0 °F c) 21.2 °F d) 25.5 °Farrow_forward2. Can we Estimate the Solar Constant? A result from theoretical physics, known as the Stefan-Boltzmann law, states that the total power radiated by a blackbody at temperature T (K) per unit surface area is given by E=GT* where E is radiated power per unit surface area of the blackbody and o is the Stefan-Boltzmann constant equal to 5.67 x 10* Wm?K*. Let's assume that the sun is a perfect blackbody at T= 5783 K and apply the laws of energy conservation to estimate the average incidence of solar energy [W/m] arriving at the top of Earth's atmosphere (we call that incident energy the solar constant). Compare your calculated estimate of the solar constant to that commonly used to model the sun. Assuming the following constants: d = 1.39e9 m=Diameter of the sun de = 1.27e7 m = Diameter of the earth Res = 1.49el1 m = Mean earth-to-sun distance (HINT: use this distance as the radius of a sphere centered on the sun).arrow_forward
- Some satellites use nuclear power. a. If such a satellite emits a 2 W flux of rays having an average energy of 0.539 MeV, how many are emitted per second? rays /s b. These rays affect other satellites. How far away must another satellite be to only receive one gamma ray per second per square meter? kmarrow_forwardWhich answer is correct? A surface area of a material at an absolute temperature above 0 Kelvin may be called a blackbody radiator if it displays these characteristics: A. Discrete light emission, very high emissivity and black colour. B. Self-luminous, very high emissivity and good reflectivity. C. Self-luminous, very high emissivity and no reflection. D. Self- luminous, very high emissivity and the peak wavelength of emission decreases without bound.arrow_forwardThe maximum intensity of radiation emitted by a star occurs at a surface temperature of 4.3 x 104 K. a) Calculate the wavelength of the emitted radiation when the intensity is maximum. b) Calculate the ratio of the intensity radiated at a wavelength of 60.0 nm to the maximum intensity. Assume that the star radiates like an ideal blackbody.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax