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The rest mass energy of an electron positron pair is?
The rest mass energy of an electron-positron pair is equivalent to the combined rest mass of the two particles, according to Einstein's equation E=mc^2. The rest mass energy can be calculated by adding the rest masses of an electron and a positron, which are equivalent to their respective rest masses multiplied by the speed of light squared.
What is the difference between rest mass and effective mass of electron?
The rest mass of an electron is its intrinsic mass at rest, which is approximately 9.11 x 10^-31 kg. The effective mass of an electron is a concept in solid-state physics that describes how an electron behaves in a crystalline solid as if it were a free particle with a different mass due to interactions with the crystal lattice. The effective mass can be different from the rest mass and varies depending on the material and the electron's energy level.
Relative mass of electron?
1/1840 the mass if a hydrogen atom.
Why is the energy of a photon greater than that of an electron?
The energy of a photon is greater than that of an electron because photons are massless particles that travel at the speed of light, which requires a high amount of energy. Electrons, on the other hand, have mass and velocity limitations that result in lower energy compared to photons.
Do photon have a greater energy than electron?
No. A photon has no rest mass an electron has mass.
The rest mass energy of an electron positron pair is?
The rest mass energy of an electron-positron pair is equivalent to the combined rest mass of the two particles, according to Einstein's equation E=mc^2. The rest mass energy can be calculated by adding the rest masses of an electron and a positron, which are equivalent to their respective rest masses multiplied by the speed of light squared.
What is the difference between rest mass and effective mass of electron?
The rest mass of an electron is its intrinsic mass at rest, which is approximately 9.11 x 10^-31 kg. The effective mass of an electron is a concept in solid-state physics that describes how an electron behaves in a crystalline solid as if it were a free particle with a different mass due to interactions with the crystal lattice. The effective mass can be different from the rest mass and varies depending on the material and the electron's energy level.
Does gamma have the same mass as 1 electron?
No, a gamma ray is a massless particle with no rest mass, whereas an electron has a measurable mass.
Is the mass of a proton half the mass of a electron?
No. The mass of a neutron is far, far, far greater than the mass of an electron. In fact, the mass of a neutron is approximately about 1840 times greater than the mass of an electron. The particle that has exactly the same mass as an electron is its antiparticle, the positron.
When is the mass of an electron regarded as zero?
The mass of an electron is regarded as zero when it is at rest. The mass of an electron or any particle is calculated by using its momentum and its energy. The mass of an electron is related to its momentum which is zero when the electron is not moving. So when the electron is at rest its momentum is zero and thus its mass is zero. When an electron is moving its mass is no longer zero as its momentum is not zero. It is calculated by using the following equation: Mass = Energy / (Speed of Light)2The mass of an electron increases as its energy increases and it increases even more when it is moving at a higher speed. So when the electron is at rest and its momentum is zero its mass is also zero.
How many times is proton heavier than electron?
The ratio of a proton's rest mass to an electron's rest mass is 1836.15267247:1. For more information, follow the link below.
Are the rest mass of the positron and the electron exactly equal?
Yes; they simply have opposite charges.
Relative mass of electron?
1/1840 the mass if a hydrogen atom.
Compare the mass of an electron to a proton.?
Electrons weigh in at about 9.1 x 10^-28 grams and protons about 1.67 x 10^-24 grams, making the proton about 1,837 times heavier than the electron. This is roughly about the same weight of a rabbit compared to an elephant.
Why mass of electron changes with its speed?
The change in mass of an electron with speed is a result of special relativity. As an electron accelerates to high speeds, its kinetic energy increases, causing its mass to appear greater than its rest mass. This phenomenon is described by the mass-energy equivalence principle, as formulated by Einstein's famous equation, E=mc^2.
A tiny particle with a negative electrical charge it circles the nucleus and 1-2000 times the mass of the proton?
the answer to this question is electron the answer to this question is electron
Which of the subatomic particle is the lightest?
Electron, lightest stable subatomic particle known. It carries a negative charge, which is considered the basic unit of electric charge. The rest mass of the electron is 9.109 × 10−31 kg, which is only 1/1,840the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom.
