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If a photon is reflected from the mirror then the change in momentum of photon is?
Wiki User
∙ 13y ago
Assuming the photon is reflected into the same medium it came from (so we can ignore refraction), its momentum differs only directionally, its magnitude stays the same. The directional component of its momentum vector is always pointing in the direction it's propagating.
Refraction is the means by which the magnitude component of the vector changes.
The change in momentum of photon is nh/lambda.
Wiki User
∙ 13y ago
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What does the electron produce when they change energy levels?
a photon is emitted or absorbed
What is the name for the particles quanta of energy packets that are in visible light. These particles act as if they have mass but actually don't.?
Yes named as photon. It has momentum though it does not have mass Its momentum is given by the expression p = h / l Here h = Planck's constant and l - lambda the wavelength of radiation
You can see your reflection in a miror because metals tend to be what?
When a photon of light hits a mirror it cause the electrons in the mirror's atoms to vibrate and give off identical photons of light. Metals work better as mirrors because they have a large number of
How can plants get engery form artificial light?
a photon is a photon is a photon
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
How many reflected rays can there be for a single incident ray falling on a plane mirror?
Substitute "photon" for "ray" and it's one. One photon falling on a plane mirror will come back off of the reflective surface if that reflective surface does not absorb it. (In a perfect plane mirror, every photon that falls on the surface will be reflected.) A photon does not "create" a second photon in a reflection event.
What is the angular momentum of a photon?
The "intrinsic angular momentum" of particles is commonly called "spin". The spin of a photon is 1, in the units commonly used.
Which is not the property of photon mass charge energy momentum?
A photon has zero electrical charge.
Is that true that the more energy of a photon the bigger the mass it possesses?
No, all photons have the same mass. Photons are massless (i.e. zero). All the energy in a photon is in its momentum, but increasing its momentum does not change it speed which is always "the speed of light". All massless particles always move at the speed of light.
Light energy is proof of which Conservation Law?
I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.
What is the momentum of moving photons?
momentum is equal to h/lambda or E/c. (By the way ... there's no such thing as a non-moving photon.)
Does a body with zero mass can transport momentum?
Technically speaking, something with zero mass would not be considered a "body" in the physical sense of the word. It is possible for mass-less particles, like photons to have a momentum. The debroglie wavelength of a photon is inversely related to its momentum. This is not momentum in the classical sense, as a car might have while it is driving, therefore it must be calculated differently. The momentum of the photon is given by : hf/c. h is the Planck constant, c is the speed of light and f is the frequency of the photon.
What is the mass of a photon in motion?
A photon is a massless particle, meaning it has no rest mass. Its mass is zero, but it does have energy and momentum.
What does a photon see when it looks in the mirror?
Another photon approaching at the speed of light. Photons have no sensory organs so they cannot "see" anything.
What happens to a photon when it hits a leaf?
the photon's energy is either reflected green (because its a leaf) or its absorbed red, because red is the opposite of green and the red is not seen.
What has neither mass nor electric charge but possess energy and momentum?
This describes a photon quite well.
How do you calculate momentum broadening phi angle regarding to virtual photon direction in DIS processes?
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