The simplest answer is that
when a photon is absorbed by an electron
, it is completely destroyed. All its energy is imparted to the electron, which instantly jumps to a new energy level. The photon itself ceases to be. … The opposite happens when an electron emits a photon.
Can light energy be destroyed?
6.
Photons are easily created and destroyed
. Unlike matter, all sorts of things can make or destroy photons. If you’re reading this on a computer screen, the backlight is making photons that travel to your eye, where they are absorbed—and destroyed.
Can you destroy a photon?
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.
Can light travel 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
.
Can light be created?
6.
Photons are easily created and destroyed
. Unlike matter, all sorts of things can make or destroy photons. If you’re reading this on a computer screen, the backlight is making photons that travel to your eye, where they are absorbed—and destroyed.
Is anything faster than light?
Albert Einstein’s special theory of relativity famously dictates that
no known object can travel faster than the speed of light in vacuum
, which is 299,792 km/s. … Unlike objects within space–time, space–time itself can bend, expand or warp at any speed.
Why is space black?
Because
space is a near-perfect vacuum
— meaning it has exceedingly few particles — there’s virtually nothing in the space between stars and planets to scatter light to our eyes. And with no light reaching the eyes, they see black.
Is light or sound faster?
The speed of light as it travels through air and
space is much faster than that of sound
; it travels at 300 million meters per second or 273,400 miles per hour. Visible light can also travel through other things besides through air and through space.
Is Hard light possible?
Solid light, often referred to in media as “hard light” or “hard-light”, is a hypothetical material, made of light in a solidified state. It has been theorized that this
could exist
, and experiments claim to have created solid photonic matter or molecules by inducing strong interaction between photons.
Can we see light in vacuum?
In a perfect vacuum, not only can you not see light that isn’t traveling toward you, you can’t even see light that is traveling toward
you until it actually reaches your eyes
. Light must reach your eyes/detectors one way or another – no matter vacuum or not.
What happens when two photons collide?
If two photons head towards each other and they both turn into electron/anti-electron pairs at about the same time, then these particles can interact. … Each anti-electron collides with an electron,
they mutually annihilate and turn back into a new photon
.
What is the fastest thing in the world?
Laser beams travel at the speed of light
, more than 670 million miles per hour, making them the fastest thing in the universe.
What is faster hyperspace or Lightspeed?
Lightspeed was slang for the speed at which a
starship traveled through hyperspace
. In reality, though, a class 1.0 hyperdrive motivator could propel a ship through hyperspace over one hundred thousand times faster than light, allowing a ship to cross the galaxy in a matter of days.
What is the fastest thing in the universe?
Laser beams travel at the speed of light
, more than 670 million miles per hour, making them the fastest thing in the universe.
What does space smell like?
In a video shared by Eau de Space, NASA astronaut Tony Antonelli says space smells
“strong and unique
,” unlike anything he has ever smelled on Earth. According to Eau de Space, others have described the smell as “seared steak, raspberries, and rum,” smokey and bitter.
Does space ever end?
Many think it’s likely you would just keep passing galaxies in every direction, forever. In that case, the universe would be infinite,
with no end
. … Scientists now consider it unlikely the universe has an end – a region where the galaxies stop or where there would be a barrier of some kind marking the end of space.
