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COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 26, Problem 6QAP
To determine
How does the intensity of light from a blackbody change when its temperature is increased? What changes occur in the body's
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Chapter 26 Solutions
COLLEGE PHYSICS
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- iv) Radiations are emitted by a blackbody at 1232 ℃ peaking at wavelength of 5032 Å. Find the wavelength at which maximum intensity is observed, when the temperature of the body is increased by 1032 ℃.arrow_forward16. || At what speed is an electron's de Broglie wavelength (a) 1.0 pm, (b) 1.0 nm, (c) 1.0 um, and (d) 1.0 mm?arrow_forwardWhat is the energy (in Joules, J) and color associated with 532-nm light? Energy and Type of EM Radiation A) 3.74×10-19 J Red (Visible, close to IR range) B) 3.74×10-19 J Violet (Visible, close to UV range) C) 3.74×10-19 J Green (Visible, middle of visible range) D) 3.74×10-28 J Colorless (Radio) E) 2.68×10+18 J Colorless (Gamma)arrow_forward
- • A beam of light with intensity of 3mW and a wavelength of 742 nm isstriking a solar cell. Estimate the number of photons incident on thecell.arrow_forwardFind the energy of the following. Express your answers in units of electron volts, noting thet 1 eV = 1.60 x 10 19 J. (a) a photon having a frequency of 7.40 x 10 Hz 3066.375 • V ev (b) a photon having a wavelength of 8.60 x 10 nm 3.56E-12 Calculate the frequency of light carresponding to the given wavelength and from the frequency calculate the energy of a photon with that wavelength. eV Need Help? Read It Master Itarrow_forward4-52. Light from the sun arrives at the earth at the rate of about 1400 W/m? of area perpendicular to the direction of the light. Assuming that sunlight consists exclusively of light of wavelength 6x107m, find the number of photons per second that fall on each square meter of the earth's surface directly facing the sun.arrow_forward
- 7. (a) What is the energy of an X-ray photons, if it corresponds to a wavelength of 0.005 nm? (b) Find corresponding frequency of X-ray radiation.arrow_forwardPhotons of a certain ultraviolet light have an energy of 6.70 ✕ 10−19 J. (a) What is the frequency of this UV light? Hz(b) Use ? = c/f to calculate its wavelength in nanometers (nm). nmarrow_forwardThree light sources are shone onto a plant: i) ii) iii) How much light (i.e. total number of photons) is available for the plant to use for photosynthesis over an 8 hr photoperiod, considering the plant has a total leaf area of 0.175 m? 320 nm at an intensity of 200 umol photons.ms 440 nm at an intensity of 300 umol photons.ms 675 nm at an intensity of 300 umol photons.ms'arrow_forward
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