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A celestial body has a temperature of 50 K. What is the wavelength of maximum intensity? In which part of the
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Chapter 7 Solutions
Bundle: Foundations of Astronomy, Enhanced, 13th + LMS Integrated MindTap Astronomy, 2 terms (12 months) Printed Access Card
- The Sun is at a 62 degree angle to the ground and a solar module with an area of 1 square metre is installed horizontal to the ground. What is the total usable solar energy striking the module if we assume incoming solar radiation of 1000 W/m2? 883 watts 469 watts 1136 watts 620 wattsarrow_forwardWhat is the energy of light having a frequency of (8.61x10^14)? Answer to 3 significant figures in scientific notation. Unit is case sensitive. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer X10 unitsarrow_forwardAssume the radiation from a heat lamp is monochromatic, with a wavelength of 1.5 μm . I =3.313 kW/m^2. a. What is the peak electric field strength, in kilovolts per meter? b. Find the peak magnetic field strength, in microtesla. c. How long, in seconds, will it take to increase the temperature of the 3.95-kg shoulder by 2.00°C, assuming that the shoulder absorbs all the radiation from the lamp and given that its specific heat is 3.47 × 103 J/(kg⋅°C)?arrow_forward
- You’re in a potions class and your friend has a bubbling cauldron of soup. You measure with a super-magic thermometer that reads 1808 K. Your skin is measured at 33 °C. Assume both examples radiate like a blackbody. a) What wavelength does the soup radiate at maximum intensity and which region of the electromagnetic spectrum does this wavelength correspond? b) Repeat part a) for your skin.arrow_forwardWhat is the wavelength of the peak of the blackbody radiation curve for the human body (T = 308 K)? (Enter your answer to at least two decimal places.) um What type of EM wave is this? O radio O microwave O infrared O visible light O ultraviolet O x-ray O gamma rayarrow_forwardWhat is the wavelength of radiation with a frequency of 4.3 x 10^14 s-1? In what region of the electromagnetic spectrum is this radiation? If the region is in the visible light spectrum, what color is this?arrow_forward
- Space-based telescopes are needed to observe electromagnetic energy that cannot reach the surface of Earth. The regions of the electromagnetic energy spectrum that do reach Earth’s surface pass through what are referred to as a. atmospheric windows. b. atmospheric portals. c. electromagnetic openings. d. extreme wavelengths. e. visible and radio waves.arrow_forwardThe electromagnetic spectrum ranges from cosmic rays to radio waves. Although we don't look at cosmic rays all too much in this unit, the order from highest to lowest energy in the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, mierowaves, and radio waves, For 3 sections of the EM spectrum, name 1-2 examples that can be used in our lives. We have provided an example down below. EM Spectrum Sections Examples Cosmic Rays Gamma Rays X-rays Ultraviolet Radiation Visible Light Our Sun Glowsticks Infrared Radiation Microwaves Radio Wavesarrow_forwardA local radio station broadcasts radio waves at 99.7 MHz. Unlike sound, radio waves can pass into outer space, because they are disturbances not in air molecules but in the e-m fields that exist even in the vacuum of space. It's energy traveling independent of matter. a. When that radio wave hits you, how many pulses (wave crests) of em radiation hit you per minute (60 seconds)? (reminder: M = 10 6) b. Radio waves move at the speed of light (c), how far apart is each wave crest (wavelength)? c. If we boosted the signal strength so that station could be heard on the moon, would either the wavelength or frequency change?arrow_forward
- Solve both. Otherwise leave it for other tutor. Calculate the wavelength λ1 for gamma rays of frequency f1 = 6.30×10^21 Hz. Calculate the wavelength λ2 for visible light of frequency f2 = 5.75×1014 Hz .arrow_forwardA few different types of electromagnetic radiation are listed in the table below. Complete the table by ordering these types of radiation by increasing frequency, wavelength, and energy per photon. For example, select "1" in the second column for the type of radiation with the lowest frequency, "2" for the type of radiation with the next higher frequency, and so forth. type of radiation green light microwaves infrared radiation radio waves order of frequency (Choose one) (Choose one), (Choose one) Y (Choose one) Y order of wavelength (Choose one) (Choose one) Y (Choose one) ▼ (Choose one) order of energy (Choose one) 1 (lowest) 2 13. 4 (highest) (Choose one)arrow_forwardIf astronomers look toward any point in outer space, they see radiation that matches the emission spectrum of an object at 2.7 K, a remnant of the Big Bang. What is the peak wavelength of this radiation? What part of the electromagnetic spectrum is it in?arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
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