If the temperature of a black body is increased from 500k to 1000k , by what factor, the rate of emission of energy from it changes?

Q: What is the wavelength of the peak of the black body radiation curve for the human body (T=310)?

A: Given data The temperature of the human body is given as T = 310 K.

Q: A certain blackbody emits electromagnetic radiation at 2500K. What is the wavelength of the…

A: From the Wien's law, λT=constant=2.898×10-3 m.K…

Q: The Einstein's photoelectric equation is а. 1 hf – hf, = =mv² | O b. hfo – hf = ¬mv² 1 || 1 hf =…

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Q: At 101°K the black body radiation weighs per cubic centimetre... 10A-6 gram O 10^-16 gram

A: Given Temperature (T)=1010  K

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: What wavelength (in nanometers) is the peak intensity of the light coming from a star whose surface…

A: Determine the wavelength of the light.

Q: Consider a 4.6-cm microwave photon. What is the momentum of the photon in kilogram meters per…

A: Momentum of Photon P= 1.44 × 10-32 Kg.m/s   We know momentum of photon is given by  Momentum  of…

Q: Two stars, both of which behave like ideal blackbodies, radiate the same total energy per second.…

A: temperature of cooler body = T diameter of cooler body = 3×ddiameter of hotter body = d Let the…

Q: 2 (µm) Find the temperature of a black body with a radiation spectrum as shown in the graph below.…

A: The maximum wavelength of radiation spectrum from the graph = 3 μm

Q: he blackbody radiation emitted from a furnace peaks at a wavelength of 2.5 10-6 m (0.0000025 m).…

A: Use Wein displacement law

Q: A nuclear bomb at the instant of explosion may be approximated to a black- body of radius 0.3 m with…

A: Given data:  Emissivity of block body (ε) = 1 Radius (r) = 0.3 m Surface temperature (T) = 107 K…

Q: How much mass is converted to energy per day in a nuclear power plant operated at a level of 100…

A: P = 100 = 100 MW =  100 x 106 W t = 1 day = 1 x 24 x 60 x 60 = 86400 s m = ?

Q: A small hole in the wall of a cavity in an object of any kind behaves like a blackbody because any…

A: Given, Area of the hole in black body, A = 30 cm2 = 0.003 m2 Temperature of the black body, T =…

Q: What is the energy of a photon of violet light with a frequency of 7.40x 1014s-1?

A: Given The frequency of the violet light is f=7.40×1014 s-1. The energy of a photon of violet light…

Q: the black body radiation emitted from a furnace peeks at a wavelength of 6.4 X 10^-6 m (0.0000064 m)…

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Q: Astronomers determine the surface temperature of a star by measuring its brightness at different…

A: By measuring the brightness at different frequencies, the spectral radiance can be found. And the…

Q: For the blackbody radiation, classical theory predicts a. The radiation decreases at large…

A: 1)According to Wiens law - (Wavelength)×(Temperature) = constant As the temperature of black body…

Q: The temperature of the sun is about 6000°K and its radius is about 6.69 x108 km. What rate does…

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Q: Consider an Earth with an average temperature of 15°C and a surface area of 5.1×10^14 m^2 as a black…

A: Given data The average temperature of the earth is given as T = 15°C = 288 K. The surface area of…

Q: Why is a red-hot object cooler than a white-hot one of the same material?

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Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 2.7  10-6 m (0.0000027 m).…

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Q: A black body at a high temperature T kelvin radiates energy at the rate of E W/m2. If the…

A: given:  At T kelvin Energy rate = E W/m2  At temperature falls by 30% or 0.7 K what is energy rate

Q: If 9.6 ev is created, what is the frequency of the energy wave generated?

A: The energy of the wave is given as E = 9.6 eV.

Q: If a star has a surface temperature of 9500K. What would be the frequency of the light given off at…

A: Write a given value of this question. T=9500K

Q: A blackbody radiatior in the shape of a sphere has a surface area of 15 m^2. If it has a temperature…

A: Given data as per question  Surface area of radiator = 15 m2 Temperature =1200 K

Q: What is the frequency of the EM wave emitted most strongly by a glowing element on a stove with…

A: According to Wein's law , the wavelength emitted most strongly at a particular temperature is given…

Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 5.5 x 10^ -7 m. What is the…

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Q: temperature of an object resembling a blackbody is raised from 10 K to 300 K. How much does the…

A: According to Stefan-Boltzmann law, the total radiant energy(E) emitted from an object is…

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: The blackbody radiation emitted from a furnace peak at a wavelength of 5.0  10-6 m (0.0000050 m).…

A: Given data λ=5×10-6 m

Q: The spectral emittance curve for the star Rigel A is a good approximation of the curve for a…

A: To determine: The surface temperature of rigel A and the power that Rigel A will radiate per unit…

Q: The Temperature of a blackbody increases from 200∘∘C to 400∘∘C. What is the change in the…

A: Intial temperature of blackbody (Ti) = 200oC Final temperature of blackbody (Tf) = 400oC

Q: Light of wavelength 5 EXP-7 m consists of photons with an energy of (c=3 EXP8 m/s) a. 1 EXP-48 J b.…

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Q: If the temperature of a black body is raised from 300K to 600K by what factor the rate of emission…

A: Write the expression for the rate of emission to calculate the rate of emission of a black body…

Q: Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed of…

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Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 4.9 10-6 m (0.0000049 m).…

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Q: how much kinetic energy and speed will the free electron have?

A: Consider that the light beam has a frequency of 1014Hz. The energy of photon is Since the electron…

Q: For a blackbody at given temperature, Amax is the wavelength at the peak of the radiation…

A: According to Wien’s displacement theory of black body radiation, the spectral radiance in black body…

Q: Assume an object is emitting blackbody radiation. The peak of a body's blackbody radiation curve…

A: Statement:Assume an object is emitting blackbody radiation. The peak of a body's blackbody radiation…

Q: What is the temperature of an object if the peak wavelength of its blackbody spectrum is 1200…

A: The Wien's law can be written as, λmT=2898 μm·K

Q: Two stars, both of which behave like ideal blackbodies, radiate the same total energy per second.…

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Q: Two stars, both of which behave like ideal blackbodies, radiate the same total energy per second.…

A:

Q: Albert Einstein was awarded the Nobel Prize in physics for which of the following? Theory of…

A: All of three paper published at the time was a groundbreaking research. Although theory of…

Q: The Temperature of a blackbody increases from 200∘C to 400∘C. What is the change in the frequency…

A: By weins displacement law (Lambda)mT = constant

Q: A blackbody radiator in the shape of a sphere has a surface area of 152 m. It has a temperature of…

A: Energy emitted per second by a black body

Q: Two stars, both of which behave like ideal blackbodies, radiate the same total energy per second.…

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Q: The classical black body radiation theory, which explains the relationship between temperature and…

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.