A pulsar is a rapidly spinning remnant of a supernova. It rotates on its axis, sweeping hydrogen along with it so that hydrogen on one side moves toward us as fast as 50.0 km/s, while that on the other side moves away as fast as 50.0 km/s. This means that the EM radiation we receive will be Dopplershifted over a range of ±50.0 km/s . What range of wavelengths will we observe for the 91.20-nm line in the Lyman series of hydrogen?                  (Such line broadening is observed and actually provides part of the evidence for rapid rotation.)

Q: on has a momentum of 8.5 × 10-21 kg⋅m/s. What is its wavelength in meters?  Calculate its energy in…

A: GivenMomentum of photon, p=8.5×10-21 kg m/s

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A: (1) Given: f=850 MHz=8.50×108 Hz The formula to calculate the wavelength is  λ=cf where c is the…

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A: Given Mass m                   = 49.0 g = 0.049 kg Wavelength λ         = 4.33×10-34 m Planck's…

Q: Photons of a certain infrared light have an energy of 1.68 x 10-19 J  (a) What is the frequency of…

A: Given data The energy of the infrared light is given as E = 1.68 x 10-19 J. Planck's constant h =…

Q: e spectrum of radiation from a blackbody at a temperature of T = 3500 K reaches a maximum at the…

A: GivenThe spectrum of radiation from a blackbody at a temperature, T1= 3500 K

Q: An incandescent lightbulb is desired to emit at least 71 percent of its energy at wavelengths…

A: To determine the minimum temperature to which the filament of the incandescent lightbulb must be…

Q: Give the rest mass (in kg) of a photon with wavelength 648.0 nm.

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Q: on at a Javelength of 5000 Å is approaching the earth with a velocity of 1.50× 106 ms-'. Calculate…

A: Here, we calculate the given as follow;

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: Microwaves are modulated at a frequency of 75 MHz. They are propogated through an atmosphere at a…

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Q: Calculate the wavelength (λ) for an X-ray photon having an energy E = 2.13 × 10–15 J.   Express…

A:

Q: A spaceship from a friendly, extragalactic planet flies toward Earth at 0.209 times the speed of…

A: Given Spaceship speed = 0.209 times the speed of light The wave length of the laser light = 687 nm…

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: An object radiates strongly at 473 nm.  What is its blackbody temperature in Kelvins?

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Q: Assuming that the smallest measurable wavelength in an experiment is 0.730 fm , what is the maximum…

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Q: A proton is moving at a speed of 2.59 × 107 m/s.  The mass of a proton is 1.67 × 10–24 g. Calculate…

A:

Q: Give the momentum (in kg m/s) of a photon with wavelength 429.0 nm.

A: Given that,wavelenght:λ=429.0 nmh=6.63×10-34

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A: Temperature (T) = 500F

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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: A log in the fire is glowing red (λ = 629 nm). What is the temperature of the log, in kelvin?

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Q: What is the wavelength, in nm, of a light wave with a frequency of 4 * 10^15 Hz?

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Q: An x-ray source generates EM radiation with a wavelength of 45.0 pm (10-12 m). h =       c =…

A: Photon energy is given by : E =hcλ = 1.98644586×10-2545x10-12 = 4.413x10-15 J Potential difference:…

Q: What will be the energy associated with a blue photon (in electronvolts, eV), if the frequency of…

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Q: nsider six proposed properties of electromagnetic radiation: wave speeds of 3.00 x 563 nm and 0.193…

A: Consider six proposed properties of electromagnetic radiation:

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Q: particle in Another theory of dark matter (there are many theories!) predicts that there is a the…

A:

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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: What is the energy (in Joules, J) and color associated with 532-nm light? Energy and Type of EM…

A:

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.