In what region of the electromagnetic spectrum do room- temperature objects radiate? What problems would we have if our eyes were sensitive in that region?
Q: A cavity radiator has its maximum spectral radiance at a wavelength of 6,9×10-7 m. If the body is…
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Q: The temperature of the surface of Pluto is about T(K) = 40 K (TC = -230 °C). %3! According to Wien's…
A: Frequency f is related to wavelength λ is given by f=C/λ, where C= speed of light
Q: A 100-WW incandescent light bulb has a cylindrical tungsten filament 35.0 cm long, 0.41 mmmm in…
A: The given problem is based on Stefan-Boltzmann law and wine's displacement law. Stefan laws stated…
Q: Consider an instrument that transmits radio waves at different frequencies vertically into the…
A: The critical frequency for a radio wave is defined as the minimum frequency of the radio wave that…
Q: According to the electromagnetic spectrum, ultraviolet rays range in wavelength from about 1.00 nm…
A: To be given,wavelength:λ1= 1 nmλ2= 400 nm
Q: Giana is looking up at a particular star in the night sky, and 2000 photons per second are entering…
A: Given information: The photons/second entering the pupil (n) = 2000 The diameter of the pupil (d) =…
Q: Use the formula λ m T = 0.29 cm K to obtain the characteristic temperature ranges for different…
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Q: What is the frequency of an ultraviolet photon with wavelength 119 nm?
A: Given data The wavelength of the photon is given as λ=119 nm.
Q: Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the…
A: The energy of the photon is given by E=hcλ
Q: The wavelength 10.0 mm is in the infrared region of the electromagnetic spectrum, whereas 600 nm is…
A: Wein's displacement law is, λmaxT=2.898×106 nm·K the temperature corresponds to 10.0 mm is,…
Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…
A: (a) Frequency of photon is (b) Wavelength is Note:Planck's constant is Speed of light is Find:Energy…
Q: What is the wavelength of a photon having a frequency of 1.65x10 15 Hz? (c = 3.00 × 108 m/s, h =…
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Q: Calculate the peak-wavelength for the human skin when the temperature of the human skin is 32° C.
A: according to Wein's displacement law λmax = b / T where, b = 2.989 x 10-3
Q: Why did scientists choose to study blackbody radiation from something as complicated as a hollow…
A: A body that absorbs maximum energy when heated to very high temperatures, and further emits…
Q: (a) What is the frequency of this IR light? Hz (b) Use A = c/f to calculate its wavelength in…
A: Given data: The photon's light energy is: E=1.04×10-19 J The frequency of photon's light is: f The…
Q: Calculate the average wavelength associated with an 150.0 lb athlete who covers 115 m in minute.
A: Given,Speed of athlete, v = 115 m/min = 1.91 m/sMass of athlete, m = 150 lb = 68.03 kg
Q: What is the energy in joules of an x-ray photon with wavelength 1.0e-10 m? Convert the energy to…
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Q: The variables velocity (v, in m.s-1), wavelength (A, in m) and frequency (f, in Hz) are related by…
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Q: Roughly what frequency and what kind of light would you need to be able to separate an electron from…
A: Protons, electrons, and neutrons are subatomic particles that constitute an atom. Electrons are…
Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 6.0 x 10-6 m (0.0000060 m).…
A: Given -. The wavelength = 6*10^-6 m To find -. The temperature inside the…
Q: Find the energy of the following. Express your answers in unit (a) a photon having a frequency of…
A: Given1eV=1.6×10-19 J
Q: What is the energy (in eV) of a 450-nm photon of blue light?
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Q: Sunburn produces cell damage in the skin. Why is ultraviolet radiation capable of producing this…
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Q: The sun’s surface temperature is about 5800 K. (a) About how much electromagnetic wave energy does a…
A: Using black body radiation laws
Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…
A:
Q: n incandescent lightbulb contains a tung-sten filament that reaches a temperature of about 3020 K,…
A: To find the wavelength corresponding to the maximum radiation from the tungsten filament in the…
Q: The red lasers used to read the barcodes of products at the grocery stores produce light with a…
A: Power is defined as work done per unit time. Thus, the energy radiated as light can be calculated by…
Q: How many photons per second are emitted by a 7.50 mW CO2 laser that has a wavelength of 10.6 mm?
A: Given Power of CO2 laser = 7.50 mW The wavelength of CO2 laser λ = 10.6 μm
Q: 3- A surveyor uses a steel measuring tape that is exactly 15.000 m long at a temperature of 30°C.…
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Q: A cavity radiator has its maximum spectral radiance at a wavelength of 2,5×10-7 m. If the body is…
A: Given Data:-λmax=2.5×10-7mTemperature ratio, TTo=5.5Wien's constnt, b= 2.897×10-3m.k
Q: True or False UV light have a high ability to move through materials such as glass, paper, pus,…
A: True or False
Q: A mercury vapour lamp emits in the green portion of electromagnetic spectrum at a wavelength of…
A: Given that Wavelength (λ)=546.1 nm bandwidth△ν =6×108 Hz Coherence length is given by L=c△tL=c△νWe…
Q: How many photons per second are emitted by the antenna of a microwave oven if its power output is 1…
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Q: a) Plot the energy spectral density p(2) of black-body radiation at 7= 3000 K and at T = 5000 K.…
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Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…
A: Given data: Frequency (f) = 4.20×1017 Hz1 eV = 1.60×10-19 JRequired:The energy of the photon in eV
Q: How many photons per second are emitted by the antenna of a microwave oven, if its power output is…
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Q: Things around you are emitting infrared radiation that includes the wavelength 1.21 x 105 m. What is…
A: Given data: Wavelength (λ) = 1.21×10-5 m
Q: How much energy is carried by light with a wavelength of λ = 509 nm? Express your answer in eV…
A: Given data: Wavelength (λ) = 509 nm = 509×10-9 m Required: The energy of light in eV
Q: A laser beam of power 6.0 W and diameter of 2.0 mm is directed upward at a highly reflective oil…
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