What is the smallest wavelength, in nvm, of light that we can normally see?

Q: The Rayleigh-Jeans distribution function is I(2,T)= 2πckgT 24 where kB is the Boltzmann constant.…

A: Given: Rayleigh-Jeans distribution function is  Iλ,T=2πckBTλ4 We need to determine the following…

Q: Determine the maximum wavelength for temperature 300K A. 9666nm B. 810nm C. 810000nm D. 31nm A. B.…

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Q: What is the shortest wavelength present in the Paschen series of spectral lines?

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Q: A distant star has a peak wave length of 0.00000041.  What is the temperature of that star?

A: Write the given value with a suitable variable. λm=0.00000041 m Here, λm denotes the peak…

Q: Derive the expression for the temperature of Hawking radiation as a function of the Planck mass and…

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Q: Which interact more with high frequency light- small particles or large particles?

A: Light can interact with matter in three ways: absorption, transmission and reflection

Q: If h/mc is very very large compared to the wavelength of the radiation that you're sending in to hit…

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Q: If the breadth of a spectral line of wavelength with 4000 A is 10-4 A what is the time for which the…

A: According to Heisenberg Uncertainty Principle,  ΔE. Δt = h/4π

Q: At rest hydrogen has a spectrum line at 143nm if this line is observed at 138nm for the star Sirius,…

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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: Compared to radio waves (low frequency light), gamma rays (high frequency light) have... (choose all…

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Q: Give the basic principle of conversion of light into an electrical pulses in a scientilation…

A: In this problem, it is asking about the basic principle of conversion of light in to an electrical…

Q: How much energy does a microwave of 30 MHz carry if there are 28,000 photons per second detected by…

A: energy per photon is given by , E = h*f given f = 30*106 E = (6.626*10-34)*(30*106 ) E =…

Q: Calculate the energy in corresponding to light of wavelength 45nm.

A: Given : λ= 45 nm = 45 x 10-9 m We need to calculate the energy for the given wavelength E = hcλ…

Q: Consider a ray of a wavelength gtn of 560.5X Part 1) Vrite the wavelength of this ray in nanometers:…

A: Given  wavelength λ=566.5×10-9 m

Q: According to Wien's Displacement Law, the wavelength of maximum emission of a body with a…

A: Given  Temperature T=357K

Q: From Wien’s displacement law, the peak wavelength of the spectral radiation is inversely…

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Q: Use Planck’s radiation law to fi nd the Stefan-Boltzmann law

A: We have to use Planck’s radiation law to find the Stefan-Boltzmann law.

Q: Can you get a dark-field image for mass–density contrast? What is the main difference of dark-field…

A: Yes we can get te dark field image for the mass density contrast.   TEM has an objective aperature…

Q: A star has the peak of its blackbody spectrum occur at a wavelength of 284 nm. What is its…

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Q: 3. Two photopeaks due to two g-rays of energies 1172 keV and 1332 keV of 60Co falls on channels 3516…

A: Given : E1=1172 keV              E2=1332 keV              C1=3516              C2=3996…

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: m. radius of orbit in second excited state?

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Q: Explain the term Colliding beams?

A: COLLIDING BEAMS:                        Colliding beam or collider  is a particle accelerator used…

Q: iA photon has a wavelength of 619 nm. Calculate the energy of the photon in joules.  iiProtons can…

A: i) Given data The wavelength of the photon is given as λ=619 nm. The energy of the photon is…

Q: Suppose a microwave oven has a power output of 1.25 kW at a frequency of 2560 MHz. How many photons…

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Q: Two starships, the Enterprise and the Constitution, are approaching each other head-on from a great…

A: Given: Rate of decrease in the separation is , v = 822.5 m/s Observed wavelength = 660.3 nm

Q: The most energetic electromagnetic waves in the universe are gamma-rays from gamma ray bursts (GRBs)…

A: Given dataEnergy E=100 TeV1 TeV=1.6x10-7 JEnergy of photon is given byE=hfE=hCλwhere h=Plank's…

Q: What is the implication of light with 100 CRI?

A: Colour rendering index ( CRI) defines colour visibility on the scale of 0 to 100.

Q: By what fraction are the wavelengths in this star's spectrum shifted?

A: Using Doppler Effect,

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

A: According to Stefan-Boltzmann's law, the energy emitted per unit time (P) from a blackbody of a…

Q: Calculate the de Broglie wavelength (in meters) of a single poton in a beam traveling at 65% the…

A: Given: Mass of proton , m = 1.6726×10-27 kg Speed, v = 65% of speed of light. To calculate: de…

Q: What is the energy of photons (joules) emitted by an 88.5 MHz FM radio station?

A: Given that Frequency of the radio signal emitted by the radio station is f = 88.5 MHz Let the energy…

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

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Q: What is the smallest wavelength, in nm, of light that we can normally see?

A: The visible light in the light spectrum is the segment of the electromagnetic spectrum that the…

Q: Consider a photon with energy 1.5 eV. 1. What is its wavelength in nanometers?  2. What is its…

A: Given data: The energy of the photon is, E= 1.5 eV Formula used: The energy of the photon is,…

Q: What aspect of the blackbody spectrum forced Planck to propose quantization of energy levels in its…

A: The definition of black body is, it a body which absorbs heat and does not reflect any part of the…

Q: In 1963, which astronomer at Hale Observatories tried redshifting the hydrogen Balmer lines to see…

A: Required : In 1963, which astronomer at Hale Observatories tried redshifting the hydrogen Balmer…

Q: The emission spectrum for sodium below shows two bright lines at frequency 1(f ) and frequency 2(f…

A: Correct option is (A) i e                       h(f2-f1)

Q: For which of the following transitions does the light emitted have the longest wavelength? O n = 4…

A: Given some transitions of hydrogen atom.

Q: If the human body is well approximated by a black body with tem- perature T = 310◦ K (98.6◦ F). At…

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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.