Consider a 4.6-cm microwave photon. What is the momentum of the photon in kilogram meters per second?

Q: Suppose that the microwave radiation has a wavelength of 12 cm . How many photons are required to…

A: The mass of the coffee is given by, m=Vρ Here, V is the volume of the coffee and ρ is the density of…

Q: An FM radio station broadcasts at 84 megahertz (MHz). What is the energy of each photon in Joule?…

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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: Calculate the energy emitted by a blackbody at 1000°C per square meter?

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Q: The number of photons in 1 J of electromagnetic radiation of wavelength 500 pm is: 2.77 x 1019 2.77…

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Q: the energy of the most energetically possible photon emitted is

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Q: 40. The momentum of a photon is 2.23 x 10 kg m/s. Its frequency and speed must be: 9.91 x 10 Hz and…

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Q: How much energy is required to separate protons and neutrons in 1 gram of a Gold coin?

A: SOlution: Given that gold coin mass m  =1 gm to find energy is required to separate protons and…

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

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Q: The mass of a proton is 1.67 × 10-27 kg. If a proton has the same momentum as a photon with a…

A: mass of a proton is 1.67 × 10-27 kg wavelength of photon = 325 nm

Q: What wavelength photon would be required to ionizea hydrogen atom in the ground state and give the…

A: Given that : K.E. = 11.5 eV Ionization energy (I.E.) to transition a photon from ground to excited…

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 synchrotron beam-line produces 5×1011 photons/s with a photon energy of 9 keV. What is the…

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Q: What is the rest mass of photon?

A: Photon is a quantum of light. Rest mass of a particle is the mass when the particle is at zero…

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: The photon has a rest mass approximately equal to 66 cal of heat is added to 100 gram of mercury at…

A: 1) The photon has a rest mass approximately equal to zero.

Q: An x-ray photon of energy 3.20 x 10-15 J has what wavelength?

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Q: In special conditions, it is possible to measure the energy of a gamma-ray photon to 1 part in 1015.…

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Q: What is the energy of a photon whose momentum is the same as that of a proton whose kinetic energy…

A: Given:K.E = 10 MeVmomentum is the same

Q: The energy of a photon depends only on its:      intensity   frequency   speed   planck constant

A: energy of photon depends on the frequency.

Q: Calculate the momentum of a photon of frequency 2.5 x 1015 m/s and type in just the value of p. Hz…

A: Given: Frequency of photon f = 2.5 × 1015 Hz We have to calculate the momentum of a photon.

Q: An object of mass 3500 kg is at traveling at 100 m/s. What is its wavelength? (speed of light is…

A: Given : m = 3500 kg v = 100 m/s c = 2.998x108 m/s h = 6.62x10-34 J.s

Q: Calculate the relativistic mass of 1.81×1024 photons (3.00 mol) with a wavelength of 450 nm.

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

A: Given dataEnergy E=100 Tev1 Tev=1.6 x 10-7 JEnergy of photon is given byE=hfE=hCλwhere h=Planlk's…

Q: photon has a frequency of 7.50 x 10141014 Hz, a. Determine the energy and the momentum of this…

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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: 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: How fast would a proton have to be traveling in order to have the same momentum as a photon with a…

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Q: Find the momentum of a photon of ultraviolet light (130nm), green light (550nm), and infrared light…

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Q: What are the energy and momentum of a photon of red light of wavelength 620 nanometers (nm)? What is…

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Q: Monochromatic light of frequency 6.0x 1014 Hz is incident on photocell that is used in metro…

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Q: A spacecraft transmits a microwave signal with a wavelength of 1.25 cm.  If the wavelength of the…

A: When the source is moving away from the Earth then the wavelength is given by: λ'=1+vscλ    ...(1)…

Q: What is the speed of a 1KeV electron?

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Q: Prove that ym, does not equal the kinetic moving at relativistic speeds. energy of a particle

A: We have to know about Relativity.

Q: How much energy is contained in 1 mol of X-Ray photons with a wavelength of 0.135 nm?

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Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.