answersLogoWhite

0

🧪

Nuclear Physics

Most commonly known for its applications in nuclear energy and nuclear weapons, Nuclear Physics also has applications in medicine and archaeology. This category is for questions about the branch of physics that deals with the study of the forces, reactions, and internal structures of atomic nuclei, Nuclear Physics.

3,164 Questions

Does a critical mass require enriched uranium?

No, a critical mass does not require enriched uranium. A critical mass is the minimum amount of fissile material needed to sustain a nuclear chain reaction. While enriched uranium is a commonly used fissile material for nuclear reactions, other materials such as plutonium can also achieve criticality.

What is the main product when 23191Pa undergoes alpha decay?

The main product of 23191Pa undergoing alpha decay is 22789Ac (Actinium-227). This occurs when a helium nucleus (an alpha particle) is emitted from the nucleus of 23191Pa, resulting in a decrease in atomic number by 2 and a decrease in mass number by 4.

Does nucleus changes its charge while emitting from beta and gamma particles simultaneously?

No, the nucleus does not change its overall charge when emitting beta and gamma particles simultaneously. Beta particles are high-energy electrons or positrons emitted during beta decay, whereas gamma particles are high-energy photons emitted during gamma decay. Both types of particles are neutral, so the overall charge of the nucleus remains the same.

Is cellphone radiation more harmful than just standing in bright sunshine?

No. Cell phone radiation is radio waves in the Megahertz and Gigahertz frequencies. This does not break up molecules in your body. Cell phone radiation is harmless. Solar radiation is infra red, visible light and ultraviolet light which can burn you and break up molecules on your skin, and also particle radiation which can break up molecules deep in your body.

What is the power formula for radioactivity?

The power formula for radioactivity is given by P = λ*N, where P is the power, λ is the decay constant, and N is the number of radioactive atoms. This formula represents the rate at which energy is released by radioactive decay.

What is the beta decay of radium 226?

Radium-226 does not decay by beta decay. It decays by alpha decay to radon-222.

How were Alpha decay and beta decay discovered?

Alpha decay was discovered in 1899 by Ernest Rutherford, who observed that certain radioactive elements emitted alpha particles. Beta decay was discovered in 1896 by Henri Becquerel and later studied by Ernest Rutherford and others, who noticed that certain radioactive elements emitted beta particles. These discoveries were important in understanding the nature of radioactivity and led to further research in nuclear physics.

What is uranium 235 when added to natural uranium?

When uranium-235 is added to natural uranium, it increases the overall percentage of uranium-235 in the mixture. This can make the uranium more suitable for use in nuclear reactors or weapons, as uranium-235 is more fissile (more easily split by neutrons) than uranium-238.

Is neutron number conserved in radioactive decay?

Neutron number is not conserved in radioactive decay processes. During beta decay, a neutron may convert into a proton, an electron (beta particle), and an antineutrino. This results in a change in neutron number.

When a steadily flowing gas flows from a larger diameter pipe to a smaller diameter pipe what happens to its speed its pressure and the spacing between its streamlines?

When a steadily flowing gas flows from a larger diameter pipe to a smaller diameter pipe the speed of gas is decreased and pressure become increased and the spacing between the streamlines less and the streamlines come very close to each other.

Does Edward Teller have a favorite quote?

not any more as Teller is dead. he may have had one when he was alive though

What is undefined nuclear region of prokaryotes?

The undefined nuclear region in prokaryotes refers to the nucleoid, a region within the cell where the genetic material (DNA) is located. Unlike eukaryotes, prokaryotes do not have a membrane-bound nucleus. Instead, the nucleoid is a distinct region within the cytoplasm where the circular bacterial chromosome is found.

What is the difference between serum half life and elimination half life?

Serum half-life refers to the time it takes for the drug concentration in the bloodstream to decrease by 50%. Elimination half-life refers to the time it takes for the drug concentration in the body to decrease by 50% due to elimination processes such as metabolism and excretion. Serum half-life is more focused on drug levels in the blood, while elimination half-life reflects the overall removal of the drug from the body.

How does tokamak work?

A tokamak is a type of magnetic confinement device used to create controlled nuclear fusion reactions. It uses magnetic fields to confine a hot plasma of hydrogen isotopes, forcing them to collide and fuse together, releasing energy in the process. The goal is to achieve sustained fusion reactions that could potentially provide a clean and abundant source of energy in the future.

What does photon arrival probability mean?

Photon arrival probability refers to the likelihood of a photon reaching a particular point in space within a given time interval. It is used in various fields such as optics, telecommunications, and quantum physics to describe the statistical distribution of photons arriving at a detector or sensor. This probability is influenced by factors such as the light source intensity, distance traveled, and medium through which the photons are propagating.

Why a geiger counter gives a lower counting rate for radioactive material that has a long half life than does with short half life?

A Geiger counter detects radiation by counting the number of decay events that occur. Radioactive material with a long half-life decays more slowly, resulting in fewer decay events per unit time compared to material with a short half-life. Therefore, the Geiger counter will record a lower counting rate for radioactive material with a long half-life.

How does the equation E equals mc2 relate with the theory of special relativity?

When travelling a significant portion of the speed of light, you have a lot of energy but you'll be travelling less than the speed of light. This energy must go somewhere, but it cannot go to its velocity; therefore the energy is put into its mass.

When alpha particles pick up electrons they become?

When alpha particles pick up electrons, they become helium atoms. Alpha particles are essentially helium nuclei without electrons, so when they pick up electrons, they form stable helium atoms with a balance of protons and electrons.

How do you change a alpha one prop seal?

To change the prop seal on an Alpha One drive, you will need to first remove the propeller, then remove the drive shaft. Next, you can access the prop seal on the driveshaft housing and replace it with a new one. Make sure to properly align and secure all components when reassembling.

When neotron emit beta particle it change into?

Beta decay occurs when a neutron essentially spontaneously turns into a proton and emits an electron (beta particle). This results in the atomic number of the original nucleus increasing by one, but the atomic mass remains the same.

What happens during fluorescence to the energy which gets absorbed but not emitted as fluorescence by the atom?

If energy is absorbed but not emitted as fluorescence it may:

  • increase the energy of the molecules - manifest as an increase in temperature
  • use the energy to power a chemical reaction - manifest as a change in composition
  • release the energy at a wavelength other than that being observed for fluorescence.