- Are photons smaller than electrons?
- Can light be destroyed?
- How many photons are there?
- How many photons are emitted per second by a 60 watt bulb?
- What is the relationship between photons and electrons?
- Can Photon be destroyed?
- Will a photon travel forever?
- Do photons run out of energy?
- Why do electrons absorb photons?
- Do photons have electrons?
- How do photons create electrons?
- How do you calculate the number of photons?
- Do electrons have mass?
- Why do electrons emit photons?
- How many photons are emitted per second?
- How many electrons does a photon have?
- Are photons faster than electrons?
- How does a photon lose energy?
Are photons smaller than electrons?
Originally Answered: Is photon smaller than electron.
As photon is not a particle but a smallest packet of light..
It does not have size mass volume etc., it only have momentum and energy.
So you cannot compare it with an electron..
Can light be destroyed?
Light is a form of energy. Energy can neither be created, nor destroyed. It can only be changed from one form to another form. … No you can’t destroy light, because light is a form of energy so you can change the light energy into another form.
How many photons are there?
In a paper published in the journal Science, researchers led by Marco Ajello from the Clemson College of Science in South Carolina, US, report that the total number of photons produced in the 13.7 billion years since the Big Bang is 4×1084.
How many photons are emitted per second by a 60 watt bulb?
So, in order to emit 60 Joules per second, the lightbulb must emit 1.8 x 1020 photons per second. (that’s 180,000,000,000,000,000,000 photons per second!)
What is the relationship between photons and electrons?
When a semiconductor absorbs a photon, the energy of the photon can be transferred to an electron as potential energy. When the electron loses potential energy, the semiconductor can account for the energy difference by emitting a photon. The same thing is true for electrons. Photons, of course, don’t have any mass.
Can Photon be destroyed?
Photons are easily created and destroyed. Unlike matter, all sorts of things can make or destroy photons. … Similarly, when a photon of the right wavelength strikes an atom, it disappears and imparts all its energy to kicking the electron into a new energy level.
Will a photon travel forever?
If there were no objects to absorb light, it would keep traveling forever. Light is made up of particles called photons that travel like waves. Unless they interact with other particles (objects), there is nothing to stop them. … If it is infinite, the light would travel forever.
Do photons run out of energy?
Actually, however, there is one way that photons do lose energy as they travel through space. Because the universe is expanding, the photon’s wavelength increases very slightly over time, and in so doing loses a bit of energy. … These photons are simply packets of electromagnetic energy.
Why do electrons absorb photons?
When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been “hit” by a rapidly moving photon).
Do photons have electrons?
Electrons have a negative charge, which means only that they move away from other negatively charged matter (other electrons) and are drawn to positively charged matter (protons, often ones in the nuclei of atoms). But photons are units (packets of energy) of an electromagnetic wave. They are not bits of matter.
How do photons create electrons?
When high-energy photons go through strong electric fields, they lose enough radiation that they become gamma rays and create electron-positron pairs, thus creating a new state of matter. … As high-energy photons decay, it will produce electron-positron pairs.
How do you calculate the number of photons?
According to the equation E=n⋅h⋅ν (energy = number of photons times Planck’s constant times the frequency), if you divide the energy by Planck’s constant, you should get photons per second. Eh=n⋅ν → the term n⋅ν should have units of photons/second.
Do electrons have mass?
The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836the 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.
Why do electrons emit photons?
Electrons emit photons to shed energy. An atomically bound electron goes from shell to shell (around an atom) it requires a quanta of energy – a photon to be absorbed or emitted. This because it requires a certain energy level to occupy a particular shell. … An e-going down to a lower energy shell emits an photon.
How many photons are emitted per second?
A laser pointer typically has a power rating of 1 mW, or 0.001 Joules per second. This means that every second a laser pointer emits a number of photons equal to (3.2x1018photons/J)(0.001J/s) = 3.2×1015 photons/s.
How many electrons does a photon have?
No matter what, a silicon solar cell can never generate more than one electron from a single photon.
Are photons faster than electrons?
A photon in a vacuum always travels faster, as it travels at the speed of light, which electrons, being massive particles, cannot achieve. … In a medium, it is possible for electrons to travel faster than photons. For instance, in water, a high energy electron can travel faster than the speed of light in water.
How does a photon lose energy?
A photon doesn’t lose energy unless it collides with a particle. Photons can scatter off interstellar electrons, for example. (Perhaps you were thinking about particles, like electrons, losing energy “in transit” in a vacuum. … Photons carry energy, but they don’t lose energy just because they travel.