Teacher Xu, Please Take Care of the Reckless Students in Your Class

"what?"

"No, Principal Gu, does your school really give him a vacation? The physics competition is only a few days away. After the end, won't class 30 resume normal classes?"

Qu Mingliang smiled, "We are on the right track now!"

Team leader and Teacher Fang, "!!!"

indeed!

When they came, they were usually in math class.

At first glance, it's nothing, but after thinking about it carefully, they can take classes so calmly and normally, and they don't pay attention to the physics competition at all!

Why not pay attention?

Too easy!

They must think it's too simple, so they don't take it seriously!

If the questions they usually do are difficult, what about the competition questions?

It's just a matter of changing the place!

"No wonder they handed in the papers so long in advance! And they all got full marks!"

Mr. Fang narrowed his eyes slightly and locked on Qu Mingliang, "Mr. Qu, what do you usually teach them? It's the questions you usually give them, it's too difficult?"

Qu Mingliang, "Mr. Fang, don't you understand what I mean?"

"It's mainly Mr. Xu, and it's Mr. Xu who gave them the questions!"

"I, in a sense, can be regarded as Teacher Xu's student."

"I also often ask Teacher Xu for advice."

"What I'm teaching is not how to teach students, but really the knowledge of the Olympic physics competition."

These words came out of the mouth of a graduate student majoring in physics, which is really unbelievable.

Teacher Fang frowned, and his voice stuttered, "This, this... how is this possible!"

Teacher Qu, "In the beginning, I also had the same expression as you, Teacher Fang, but that's the truth! Sometimes, our imaginations are indeed limited!"

"Even if Teacher Xu is the truth, we dare not face it."

What Qu Mingliang said was very painful.

Yes!

They were all limited in their imagination, and even when they saw the real wizards, their first reaction was to question them.

Teacher Fang and the group leader looked at each other.

at this time.

"Ring Ling Ling..."

Qu Mingliang's phone rang.

"I'm sorry, I'm going out to pick up a call from Teacher Xu, I'm sorry..."

Teacher Xu's phone number!

Geek!

The team leader and Teacher Fang immediately looked at Gu Jijian and Liao Xiaosheng, "The two...!"

Gu Jijian understood what they meant, and immediately raised his hand, "Mr. Qu, if it's convenient, you can answer it here, it doesn't matter!"

Qu Mingliang, "I think it should be the title of the message I left him before. After he saw it, he replied to me."

Team leader, "!!!"

Teacher Fang, "Can I answer it here?"

Qu Mingliang nodded, and after answering the phone, he turned on the amplifier.

Several people in the reception room immediately got up and brought their ears close.

Qu Mingliang, "Mr. Xu?"

Xu Heng went straight to the point, "There is something wrong with your first question."

"The most important question you have to solve in this question is: You already know theoretically how things move, but what will the observer see when he does this experiment?"

Qu Mingliang, "I...!"

Xu Heng, "Mr. Qu, listen to me first, I have limited time."

Qu Mingliang, "Okay! I'll listen carefully! Say it!"

Xu Heng continued, "The speed of the two images is consistent with the real speed of the fish from the readings on the scale in the water. In fact, two opposite speeds were observed, one of which was three times that of the other. , one is three times as large as the other."

"A person should look from a distance, because at the same time he needs to see an image in the distance behind the fish tank."

"The distance between the two images is 8.33R. It is possible to see the real image with the naked eye, as long as we look at it at a much further distance than the photopic distance."

"The title refers to the observer at a distance, which means that he observes the change in the angle of light coming from two images at different distances."