This lord is very scientific.

Lin Ke's voice was deafening.

Before he broke through the fifteenth level, Andrew did tell him.

Before he broke through, Emperor Wumian, Ruiwen, Auf, Lika, etc., all told him how to break through the fifteenth level.

He was sure that everyone was indeed thinking about him.

It was just that he made a mistake that he often made in his previous life, that is, he trusted his elders too much.

In the previous life, whether it was relatives or teachers, they often taught the younger generation with the experience and judgment formed from their own subjective perspective.

Sometimes it was right, because their experience was indeed useful.

But sometimes it was undoubtedly wrong.

After all, you must have your own judgment and practice methods, and you cannot be imprisoned and retaliated by the phrase "for your own good", or directly deny what you have seen and heard.

Reject empiricism and dogmatism!

At this time, Lin Ke wanted to teach everyone the same thing.

It has to be said that many students are actually quite blindly obedient.

Why blindly obedient?

It doesn't mean that they didn't think in the experiment, but that they didn't have their own thinking.

Others say that this experiment can prove that light is a particle, and then they judge whether the experiment is wrong. If it is not wrong, then they believe it.

Others say that another experiment can prove that light is a wave. As a result, they judged and felt that it was indeed correct.

But they overlooked one point.

Is light a particle or a wave? As a [scholar], shouldn’t you think about how to observe and judge it yourself?

It is not said that there is only one experiment that can prove that light is a particle or a wave.

As a [scholar], after seeing other people’s experiments, shouldn’t you be inspired and think about another experimental method that can prove it?

Just like Andrew said at the beginning.

As a strong man on the [scholar] side, can’t Lin Ke experiment by himself to see how to break through level 15 best?

Others’ is always theirs.

Therefore, Lin Ke’s words at this time are very beneficial to everyone.

"So that's it... So that's it..."

"The principal's words are so thought-provoking!"

"I... I've made a breakthrough!"

"Me too!"

"I'm not far away! Some of the previous experiments really have too many doubts..."

"Too shocking, too admirable, it's a sudden enlightenment for me!"

Not to mention the students, the teachers, faculty, and various visitors at this time all felt that they had suddenly realized.

At this time, Lin Ke finally said his last experiment of the day: "...Finally, I will do one last experiment, which is to prove whether light is a particle or a wave."

"But, everyone."

At this point, Lin Ke's tone became a little more serious: "I did this experiment just to verify what I thought in my heart, not to be authoritative, nor does it mean that what I did must be the truth!"

"Don't follow the superiors, don't follow the books, only the facts!"

"This is a real [scholar]!"

As he said, Lin Ke waved his hand and began to study.

What experiment was he going to do?

Double-slit interference experiment!

The instruments behind Lin Ke began to change.

To prove the wave-particle duality, the main thing is Young's double-slit experiment.

That is, put a candle in front of a piece of paper with a small hole, so that a point light source is formed.

A light source emitted from a point, and then put another piece of paper behind the paper, the difference is that the second piece of paper has two parallel slits.

The light emitted from the small hole passes through the two slits and is projected onto the screen, forming a series of alternating light and dark stripes, which are the well-known double-slit interference stripes.

In the previous life, when did scientists discover the wave-particle duality?

This is a person who cannot escape from one person-Albert Einstein!

Albert Einstein explained the photoelectric effect with the concept of photons, and physicists began to realize that light waves have the dual properties of waves and particles.

Later, de Broglie proposed the "matter wave" hypothesis, and he advocated that "all matter" has the dual nature of wave and particle, that is, it has the dual nature of wave and particle.

According to the de Broglie hypothesis, electrons should have wave phenomena such as interference and diffraction.

Then the Davidson-Germer experiment designed and completed by Davidson and Germer successfully confirmed the de Broglie hypothesis.

That is to say, light does indeed present two properties.

At this time, looking at the experiments of various equipment behind Lin Ke, the people of the two schools below gradually became restless.

"This... this is impossible!"

"How is this possible? Light is clearly an electromagnetic wave!"

"Why is it a particle?! No! It also has a wavelength..."

"This observation result... this observation result..."

The students were boiling, especially the physics students.

And Lin Ke, at this time, not only did the double-slit experiment, but also conducted other experiments at the same time.

Photoelectric effect... matter wave...

So, Lin Ke's explanation voice directly overwhelmed everything:

"... photons from the upper left hit the metal surface, expelling electrons from the metal surface and moving to the upper right."

"I think that irradiating a light beam on the metal surface will cause it to emit electrons, and the emitted electrons are called photoelectrons."

"Of course, in order to produce the photoelectric effect, the light frequency must exceed the characteristic frequency of the metal material, that is, the 'bottom limit frequency'.

For example, if a blue beam with very weak irradiance is irradiated on the surface of potassium metal, as long as the frequency is greater than its bottom frequency, it can emit photoelectrons. However, no matter how strong the irradiance is, the red beam will emit photoelectrons once the frequency is less than the frequency of potassium metal. If the limiting frequency is reached, it will not be able to emit photoelectrons. "

“According to the wave theory of light, the irradiance or amplitude of light waves corresponds to the energy carried, so a beam with very strong irradiance must provide more energy to expel electrons. However, the fact is exactly the opposite of what classical theory expected. "

Lin Ke paused, and then continued after talking about Einstein's photoelectric effect theory:

"I believe that a light beam is a group of discrete quanta, now called photons, which fluctuate continuously. From the black body radiation law, I deduce that the energy E possessed by each photon making up the light beam is equal to the frequency ν multiplied by a constant, that is Lin Ke's constant, and finally I formulated the 'Lin Ke photoelectric equation'..."

Lin Ke's voice was still strong and steady.

Until now, no intelligent life has ever directly observed that particles exhibit the form of waves and particles at the same time. At most, it is theoretical deduction and conjecture of some people.

At this moment, as Lin Ke told the story, the entire crystal wall system of the planet Nasenger also changed accordingly.

"Rumble..."

The crystal wall system that had undergone changes not long ago began to tremble horribly when Lin Ke spoke.

Several laws are looming in a row, and some of them are even directly connected, as if they are going to form further rules.

It even seems to have vaguely affected the fundamental laws.

Nassenger, things have changed!