Chapter 203 Double-slit Interference Experiment (2)
Chapter 203 Double-slit Interference Experiment (2)
Before the experiment, Master Hao Guang asked him and me to gather all the magical power in our bodies.
He said that the magic power must not be released, as this would affect the results of the experiment.
As for when to use mana, he will tell me the timing.
Instructor Hao Guang first turned on the mercury lamp and let it emit a stable light source.
A single-slit board is placed in front of the mercury lamp so that light can pass evenly through the gaps in the board.
At this moment, I saw a vertical line of light appear behind the wooden board, that is, on the observation screen.
Teacher Hao Guang told me, now you see a crack of light, right?
I nodded, not thinking it was anything strange, it was a very normal phenomenon.
Seeing me nod, Teacher Haoguang took away the single-slit wooden board where the light was directly shining, and took out a wooden board with two gaps.
Now, what pattern do you think will appear on the observation screen if I place this double-stitched board in the place where the single-stitched board originally was?
If light passes through a single slit, there will be one streak of light, then if it passes through a double slit, there must be two streaks of light.
Two, I answered affirmatively.
Two? Are you sure?
Seeing that I answered twice, Hao Guang asked again, this time with a hint of smile in his tone.
Just two! I confirmed again.
Seeing how sure I was, Instructor Haoguang put the double-seam wooden board back to its original position with an unstoppable smile.
Then I saw several stripes appear on the observation screen.
Not two, but many.
Why is this happening? Shouldn't there be two?
Hao Guang: Don't be surprised, our experiment has just begun. Now let's think about why you think there are several stripes instead of two on the observation screen.
why?
My brain started to work rapidly, analyzing all the possibilities that could have caused this phenomenon.
A single crack has one light streak, but two streaks have become several. The reason for the split...
Suddenly, I thought of water waves. When water drops fall on calm water, they create ripples.
When two drops of water fall on the water surface at the same time, they will create several ripples.
This is because the waves caused by the two drops of water affect each other, resulting in several ripples.
Could it be that the light also creates waves after passing through the slits? The waves of the two rays of light interfere with each other outside the double-slit plate, resulting in several light traces?
Chen Shijian: Light, light particles, light rays...direct light, light waves!
I understand, I understand, countless light particles make up light, and the movement trajectory of light appears to be a straight line, but in fact it is fluctuating, it is a light wave.
It is the mutual interference of the two light waves that causes several light marks to appear on the observation screen!
clap clap clap!
The sound of applause rang out. It was Teacher Hao Guang in front of me praising me.
Hao Guang: Yes, you were able to guess this possibility in a very short time, which is enough to show that your thinking is quite quick and intelligent.
But, as I just said, our experiment has just begun.
Your theory just now is that the light waves caused several light streaks to appear on the observation screen, is this correct?
I nodded. My guess and theory were correct and could explain this phenomenon.
Hao Guang smiled and nodded, and asked me another question: What are light waves made of? Or, what is light made of?
Light is made up of particles. Light composed of countless particles emits direct rays while waving in all directions, which is a light wave.
I blurted out that this was my understanding based on my previous knowledge and the guess I just made.
Hao Guang: Haha, then, according to your understanding, the light waves composed of countless light particles interfere with each other when passing through the two light slits, which causes several light marks to appear on the observation screen.
So, if the light wave is not composed of countless light particles continuously irradiating, but only a few simple light particles passing through the slits separately, what will happen to the pattern on the observation board?
In this way, there is no interference between light particles.
No interference...
It's not a light wave, it's not a continuous beam of light, it's just a few simple light particles passing through the gaps, unable to ripple around...
Then there must be only two light streaks on the observation board this time.
Chen Shijian: There must be only two streaks of light. There is no reason or logic to guess wrong this time.
As I spoke, the smile on Teacher Haoguang's face widened, even to the point of being a little sinister.
Seeing this expression, I suddenly realized that I might have guessed wrong again.
Sure enough, soon after that, Professor Hao Guang took me to start the second experiment.
In the second experiment, instead of using a mercury lamp that can emit light continuously, we took out a photon gun that can emit light particles in a single shot.
Then switch the photon gun to burst mode to ensure that only one photon is emitted at a time. In this way, only one photon will pass through the slit and it will not interfere with other photons.
Imagine that two separate light spots should appear on the observation screen.
But to my surprise, at first the light spots on the observation screen were somewhat chaotic due to the small number of photons emitted by the photon gun.
However, as the number of photons increases, there are still several zebra stripes of light and dark on the observation screen.
Why is this happening?
This time the light was not a continuous irradiation that showed fluctuating light waves, but a simple light particle, and yet such a result occurred.
why?
My brain was a little confused, and the powerful thinking ability given to me by the great master seemed to be insufficient at this moment.
My face started to turn red. To put it in a more vivid way, my CPU started to overheat and I felt a little feverish.
Seeing me like this, Teacher Hao Guang asked me to calm down.
Hao Guang: Xiao Shitou, don’t be stubborn and don’t question your guess. Theoretically speaking, your idea is correct.
When a single photon passes through the slit, two light streaks should appear on the observation screen, not several.
Chen Shijian: Then why did it turn out like this, Professor Haoguang, just tell me, don’t keep me in suspense.
Hao Guang smiled: Haha, since the light has changed from two to several, it means that it has been interfered with.
Chen Shijian: But this time there is no interference between the lights. This shouldn’t be the case.
Hao Guang: If light does not interfere with each other, then does that mean nothing else will interfere with light?
Teacher Hao Guang’s words calmed me down instantly. Could it be that there are other things affecting the light particles that we can’t see?
And we haven't discovered it yet?
I swallowed and looked at Instructor Haoguang, only to see him take out a recorder and then speak to me.
Xiao Shizi, are all the fighters in the World God Group so impulsive?
Don't forget, if your godfather falls asleep and never wakes up, you will be the future Lord of Heaven, and the fate of the entire world will be controlled by you.
For this reason, even if you encounter a huge difficulty, a problem that you cannot understand and that makes you feel desperate and suffocated, you need to stay calm.
An absolutely calm or even cold heart is a necessary condition to become a supreme ruler.
In this respect, you are far inferior to your father.
Now, sit down. Calm yourself down and watch carefully. Think rationally and calmly.
I said, our experiment has just begun.
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si-mexico