Why does the wavelength response of the human eye match the visual window of Earth's atmosphere so well?
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A: Bond energy, EC-Cl = 339 kJ/molBond energy, EO-O = 498 kJ/molAvogadro's number, NA = 6.023×1023…
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A: Given data: Color temperature of LED bulb is, T=3499 K.
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A: The smallest detail observable with a microscope is equivalent to the wavelength of light used.
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A: We can apply Wien's law.
Q: State one harmful effect each of the (a) ultraviolet (b) infrared radiation
A: (a) Ultraviolet radiation results in sunburn, eye damage and alteration of skin’s immune system.
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A: Given data: Time period, T=1 ns=1×10-9 s
Q: 28. WJAB (90.9 FM) is a National Public Radio-affiliated college radio station located on the campus…
A: We are given radio waves. These are FM radio waves. The time period is related to frequency as T=1f…
Q: Follow up questions: Sunburn (and skin cancer) is caused by ultraviolet light waves having a…
A: Frequency of Ultraviolet ray=1.02×1016 Hz Frequency of Electromagnetic waves =1.43 GHz Frequency of…
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A: Given: X rays, red light, radiowaves
Q: How are Infrared and Visible photons different from one another?
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A:
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- The figure below depicts spectral reflectance measurements for three different materials: a green leaf from a healthy plant, a sheet of shiny blue paper, and the palm of a human hand. The measurements are labeled 1 (black line), 2 (red line), and 3 (blue line). Match the measurements to the most appropriate material type10² 106 Increasing frequency, f (Hz): 104 106 1 Radio waves (low f, longa) AM 104 10² Decreasing wavelength,λ (m) 108 FM TV 1 1010 Microwave Radar 10-2 10¹2 700 nm 10-4 1014 Infrared 10-6 600 nm 1016 Ultra- violet 10-8 Visible light 1018 X rays 10-10 500 nm 1020 1022 Gamma (y) waves (high f, short 2) 10-12 10-14 400 nm 1024Calculate the range of wavelengths (in m) for ultraviolet given its frequency range is 760 to 30,000 THz. smaller value _____ m larger value _____ m b) what is the FM frequency range of 88.0 to 108 MHz. smaller value _____ m larger value _____ m
- Astronomers want to observes celestial objects in the electromagnetic spectrum when the atmosphere is opaque . what options do they have?The shortest wavelength emitted by a bat is about 3.30 mm. The corresponding frequency is __________10² 106 Increasing frequency, f (Hz): 104 106 1 Radio waves (low f, longa) AM 104 10² Decreasing wavelength,λ (m) 108 FM TV 1 1010 Microwave Radar 10-2 10¹2 700 nm 10-4 1014 Infrared 10-6 600 nm 1016 Ultra- violet 10-8 Visible light 1018 X rays 10-10 500 nm 1020 1022 Gamma (y) waves (high f, short 2) 10-12 10-14 400 nm 1024