Under the right circumstances, a photon of high enough energy can give rise to an electron-positron pair. What minimum energy photon is required?

Q: Calculate the wavelength of electrons accelerated from the rest state with the help of an electrical…

A: Electric potential (V) = 15000 volts Initial speed (u) = 0 ms

Q: An electron and a positron, each moving at 3.0 x105 m/scollide head on, disappear, and producetwo…

A: The electron and positron are combined together to produce two photons. The combine mass of electron…

Q: The average lifetime of a muon is about 2 μs. Estimate the minimum uncertainty in the rest energy of…

A: Using the uncertainty principle,

Q: What is the momentum of a λ=0.014nm X ray Photon ?

A: λ = 0.014 nm

Q: Given a photon with wavelength 430 nm, find the energy and momentum of the photon. What equivalent…

A:

Q: What is the energy of a neutron having wavelength 300nm?

A: (given)         Wavelength λ = 300 n m = 300×10-9 m Mass m of neutron = 1.675 ×10-27 kg Energy of…

Q: What is the wavelength of the most energetic photon that can be emitted from a muonic atom with Z=1?

A: The electron on gaining energy becomes excited. They then jump from lower orbit to higher orbit. It…

Q: Using conservation principles, prove that a photon cannot transfer all its energy to a free…

A: To solve this case, conservation of energy and momentum is to be examined. Let , 'lambda' be the…

Q: In view of the uncertainty principle, why does a baseballseem to have a well-defined position and…

A: The minimum expected error in measurement in position and momentum is given by uncertainty principle…

Q: The cosmic background radiation is blackbody radiation from a source at a temperature of 2.73 K. (a)…

A: The Wien's law states that the wavelength corresponding to highest intensity is inversely…

Q: When a proton passes through matter, it is possible for it to interact with the matter in such a way…

A: A photon passing through matter can interact with it in different ways like  X-rays, photoelectric…

Q: The velocity of an electron moving in the +x direction with a velocity of 0.12 c is measured with 1%…

A: Given : Velocity of an electron (v) = 0.12 c = 0.12(3 x 108) = 3.6 x 107 m/s Precision = 1% = 0.01

Q: An unstable particle of mass 15 [kg] moving with velocity 8/17 decays into a stable particle and a…

A:

Q: What does one measure with the Weinberg angle? O The ratio between the coupling constants of charged…

A: The Weinberg is related to the mass of the W boson and the mass of the Z boson. Let the Weinberg…

Q: Two photons are produced when a proton and an antiproton annihilate each other. In the reference…

A:

Q: The energy of the four non-interating identical fumions and bosons in one dimensional box of size a…

A: A fermion is a particle that follows Fermi–Dirac statistics. Electrons, Neutrinos, Muons fall under…

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

A:

Q: What lifetime do you expect for an antineutron isolated from normal matter?

A:

Q: Theorists have had spectacular success in predicting previously unknown particles. Considering past…

A: Experiments done at world class facilities like CERN, Fermi Labs etc have proven many theories…

Q: Find the de-broglie wavelength of a 1.00MeV proton. Is a relativistic calculation needed?

A:

Q: Consider a “muonic atom,” which consists of a proton and a negative muon, symbol -μ. Compute the…

A: Known data: Mass of proton, mp=938.27 MeV/c2 Mass of negative muon, mμ=105.66 MeV/c2 Planck's…

Q: A particle has a lifetime of 1 × 10–23s. Calculate the typical uncertainty in the measurement of its…

A: Lifetime of the particle is t = 10-23 s

Q: I) What is the frequency of radiation required to supply 1.0 x 102 J of energy from 8.5 x 1027…

A: The energy of a photon released during radiation is given by:E=hfwhereh is Planck's constant;…

Q: Find the momentum (in kg·m/s) of a 11.0 keV x-ray photon.

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: What is the wavelength, in nvm, of an electron traveling at 10% of the speed of light?

A: The solution is given below

Q: The uncertainty in energy of the uncharged pi meson, expressed in eV is .[Rest ..... ...... energy…

A:

Q: Find the de-broglie wavelength of a 1.00 MeV proton. Is a relativistic calculation needed?

A: We have to find the de-Broglie wavelength of a 1.00 MeV proton. We have to mention, whether a…

Q: This uses a magnetic field to separate particles by their mass.   Mass Spectrometer   Velocity…

A:

Q: An electron and a positron meet and completely annihilate, creating two photons, each with the same…

A: Given data The number of photons is n=2 The completely annihilate process is as shown below,…

Q: The uncertainty in energy of the uncharged pi meson, expressed in eV is [Rest energy =125 MeV,…

A: given  uncertainty in time = life time  = 0.083 fs = 0.083 × 10-15 s  = 8.3 × 10-17 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: If someone wanted to build a scale model of the atom witha nucleus 1.00 m in diameter, how far away…

A:

Q: What is the radius for an electron having total energy of -3eV in the third energy level? 0.477nm…

A:

Q: calculate the momentum of a photon having a wavelength of 100nm. Also, find the velocity and kinetic…

A: Given:-  The wavelength of the photon is λ = 100nm  Find:-  calculate the momentum of a photon…

Q: The peak intensity of the CMBR occurs at a wavelength of 1.1 mm. What is the energy in eV of a…

A:

Q: An electron and a positron are separated by distance r. Find the ratio of the gravitational force to…

A: The gravitational force in this case is The electrical force between the electron-positron pair is

Q: If pair production of muon-antimuon pair can occur for photons of wavelength =5.85 x 10-15 m or…

A: Given : Wavelength of photon, λ = 5.85 ×10-15 m

Q: A positron and an electron with negligible kinetic energy meet and annihilate one another, producing…

A: From conservation of energy, the total energy before annihilation and after annihilation remains…

Nuclear interactions

In nature, there are certain rules and standards for an interaction. These interactions are universally accepted. There are four types of interactions: