EBK THE COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135161753
Author: Voit
Publisher: VST
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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.
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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?
Hello,
This is a follow-up question for part b.
For part "b", I supposed that the wavelength of maximum intensity for the following elements is:
1) Sun: 0.500µm
2) Light bulb: 0.966µm
3) Earth: 9.659µm
Please note that these measurements are merely hypothetical and are not the actual wavelength radiations. These are just random numbers.
Can you help me understand the formula for part "c" so that I can implement the answers from part "b" and figure out the temperatures of the sun, light bulb, and the Earth?
Thank you,
-Fredrick Beckmann
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?
Chapter 5 Solutions
EBK THE COSMIC PERSPECTIVE
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
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