explain why astronomers call such an object a blackbody?
Q: Calculate the radiance of a 4,456-K blackbody at a wavelength
A: Given data: Temperature, T=4456 K Wavelength, λ=632 nm=632×10-9m Known data: Planck's constant,…
Q: A cavity radiator has its maximum spectral radiance at a wavelength of 6,9×10-7 m. If the body is…
A:
Q: A source emits 12:0 J of light of wavelength 620 nm and 80 J of light of wavelength 580 nm per…
A: (a) The total radiant flux The expression for total radiant flux is Total Radiant flux=Total…
Q: A black body radiator in the The shape of a sphere has a surface area of 1.1 m². If the temperature…
A: Given data: Surface area (A) = 1.1 m2 Temperature (T) = 1015 K Black body radiator
Q: We all know the trick of pretending to lose a cell phone connection, but the receiving person (in…
A: (1) Given: f=850 MHz=8.50×108 Hz The formula to calculate the wavelength is λ=cf where c is the…
Q: Calculate the number photons of green light (535 nm) required to have the same amount of energy as 1…
A:
Q: A blackbody has a temperature of 2000°C. Determine the wavelength and frequency of its most intense…
A: Given: Temperature of blackbody T = 2000oC=2273K
Q: If the wavelength of a photon is doubled, describe what happens to its energy. How would you…
A: The energy E of a photon is given by Planck's equation: E=hf, where h is Planck's constant…
Q: Which type of X-ray spectrum (continuous or discrete) would you expect to be the most dominant…
A: Which type of X-ray spectrum (continuous or discrete) would you expect to be the most dominant…
Q: Suppose the electron in a hydrogen atom moves fron n=2 to n=1. In which region of the…
A: Solution: Given: 1 eV = 1.60 x 10-19 J h = Planck's constant = 6.63 x 10-34 J.s ni = initial…
Q: The terminology of different parts of the electromagnetic spectrum is given in the text. Use the…
A: Energy of the photon
Q: The neutral iron line in Sun's spectrum has a wavelength of 5270 Å. Find the wavelength shift of…
A:
Q: The temperature of a blackbody is 5505 o (a). What is the wavelength of the peak of the blackbody…
A:
Q: Use the formula λ m T = 0.29 cm K to obtain the characteristic temperature ranges for different…
A:
Q: Can a grey body transmit energy? If all grey bodies are opaque, does the transmissivity = 0?. I…
A: Gray body When the emissivity of the non-black surface is constant at all temperatures and…
Q: (a) Find a symbolic expression for the wavelength 2 of a photon in terms of its energy E, Planck's…
A: A photon of light of frequency f has a momentum P = hfc But f = c/λ,…
Q: Two infinite black plates of 800deg C and 329 deg C exchange heat through radiation. Calculate the…
A: Write the given values with the suitable avriables. T1=800 °C=1073 KT2=329 °C=602 K Here, T1 and T2…
Q: The Earth is spherical in shape and can be considered to be a perfect black body radiator at a…
A: Given Data Temperature is given as T=58°C=(58+273) K=331 K Radius of the Earth is R=6360 km=6360…
Q: How fast should an electron move such that its kinetic energy is equal to the energy of a red photon…
A: We know that Energy of photon is given byE=hcλ 1Hereh=plank…
Q: 1. Temperature of the Cosmic Microwave Background radiation (CMB) is T= 2.725 K. a) Assuming it has…
A: (a) as we know max. Wavelength of radiation given by wein displacement law Lembda = b/ T where b is…
Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: According to the Wien's law formula the relation between temperature and wavelength is given by,…
Q: Hydrogen H2 is a diatomic molecule composed of two hydrogen atoms. (Figure 1) is an energy diagram…
A: Given that: The velocity is v=19 km/s= 19×103 m/s The distance is x=0.05 nm The energy is…
Q: You heat the coals of your grill to cook your favorite BBQ food to a temperature T=500 F. What is…
A: Temperature (T) = 500F
Q: An electromagnetic wave is called ionizing radiation if its photon energy is larger than, say, 10.0…
A: The expression for the energy of the photon, The expression for the frequency of the photon,
Q: What is the energy in cm¯! of a photon of 500 nm energy that may be observed in electron (UV-VIS)…
A: Given: (a) wavelength in UV-VIS region, λ=500 nm (b) wavelength of photon in IR region, λ=6 micron…
Q: Consider that the low frequency spectrum of the HCl molecule can be described by a harmonic…
A:
Q: In class we found an expression for the 'garden hose angle', y, and showed it had a typical value…
A: Given, There is an expression for the graden hose angle ψ
Q: sa wavelength lo e visible light reg
A: The given region as,
Q: collisions transfer energy
A: The year with the most auroras would be 2014, and the year with the least auroras would be 2020.
Q: What is the frequency (Hz), wavenumber (cm21), and energy (kJ/mol) of light with a wavelength of (a)…
A: Part-a Given: The wavelength of the light λ = 100 nm.
Q: Our sun's blackbody temperature is about 6000 K and its peak radiation occurs at a wavelength of…
A: We can apply Wien's law.
Q: A blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only…
A: First option is correct.
Q: How fast should an electron move such that its kinetic energy is equal to the energy of a red photon…
A: Given Wavelength of red photon λ=722 nm=722×10-9 m Energy of the photon E=hcλ h=Planck constant…
Q: If the temperature of a blackbody increases, the peak wavelength will increase as well. True or…
A: If the temperature of a blackbody increases, the peak wavelength will increase as well
Q: What is the significance of the blackbody radiation spectrum in understanding the behavior of…
A: A blackbody is an idealized physical body that absorbs all incident electromagnetic radiation,…
Q: A black body has a temperature of 31,787 K. At what wavelength is its radiation most intense? Please…
A:
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…
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: Consider the following observations: 1. A circular metallic disc has a circular hole at its centre.…
A: 1. The formula to calculate the linear thermal expansion of the material, ∆L=αL0∆T where α is…
Q: A tungesten filament is heated to 3000.0 ∘∘C. Calculate the wavelength for which the emission…
A: According to Weins Displacement Law Wavelength*Absolute Temperature=Constant where constant…
Q: An electromagnetic wave traveling in free space has an electric field given by: E - 100 V/m (V5j- 2k…
A: Irradiance(energy per unit volume)= Energy density stored in an electric field, uE=cε02E2 J/m3 E=…
Q: Calculate the wavelength of a photon having an energy of 5.89 x 10^11 J of energy. E = hc/λ
A: SOlution: given that E =5.89 x 10^11 J to calculate the wavelenght of the photon
Q: Calculate the wavelength of the em wave required to ionize a hydrogen atom (i.e., remove the…
A: Principle quantum number for hydrogen atom is one. When hydrogen atom goes under ionization, the…
Q: The universe is filled with a radiation, called the Cosmic Microwave Background (CMB) discovered by…
A:
Q: Assume that your body (with temperature of 310 K) can be approximated as a blackbody. What is the…
A:
An idealized radiating object does not reflect or scatter any radiation but instead absorbs all of
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
