In the second half, Evergrande was all reckless, they were reckless, and they pressed Perth glory on the lawn and rubbed wildly.

"Entered!"

"Evergrande is in again!"

"Evergrande scored three goals in a row in the second half!"

"4-0! 4-3 on aggregate! Evergrande advances to the AFC Champions League final!"

"Hahaha! This is not the last game of Evergrande, I have brought Evergrande milk to life!" Lan Jie shouted excitedly, his excitement overflowing.

Zhang Yutong happily danced with his hands: "Exciting! It's really exciting! It's worth the trip!"

The exciting ball game had a good relaxing effect, and after the game, Lan Jie and Zhang Yutong returned to their daily lives and worked hard in their respective studies.

In a blink of an eye, at the end of October, early in the morning of October 29th, Lan Jie, who had brought all the props, came to the sheep.

Today is the day of the provincial semi-final theory exam of the physics competition. After the reform of the competition system of physics competitions, the provincial semi-finals are equivalent to the national qualification, which is very important in general.

The players of the sheep competition team are divided into three different test centers, and the three buses of the sheep will send the players and coaches to each test center.

Lan Jie's test center is very close to his home and Yangzhong, four subway stations away, and the test center is a few dozen meters away from the subway entrance, and it is very convenient for Lan Jie to go to the test center by himself.

Coach Tong Yuanhong asked all the players of the competition team to gather in Yangzhong first, and then collectively take the bus to the test center, highlighting the three words of ceremony.

The coach of Lan Jie's bus is Tong Yuanhong, and after the bus starts, Tong Yuanhong begins to issue the admission tickets of the team members.

On the day of the rematch, I got on the bus and issued the certificate again, which shows the importance of Mr. Tong.

Tong Yuanhong asked: "Students, do you have a pen, a ruler, a calculator, a logarithmic table, and a physical constant table? ”

"Brought it. ”

"Bring it all. ”

"I ...... I forgot my calculator!"

The students all brought all the props, but Wu Zihan didn't bring a calculator.

"It's okay, this calculator is for you. Tong Yuanhong took out a calculator from her treasure chest and handed it to Wu Zihan.

Wu Zihan made an oath: "Thank you, Teacher Tong, I will definitely live up to my mission!"

Tong Yuanhong asked again: "Have you brought all the food and drink?" If you don't bring it, I have spare food here. ”

The theory test of the physical competition semi-finals lasts from half past eight in the morning to half past one at noon, and during these five hours, the contestants can go to the toilet, eat and drink to replenish their strength and water.

Tong Yuanhong had already informed the rules of the competition, and she reconfirmed it in the car to make sure that nothing went wrong.

"Bring it!"

The students' answers this time were highly unified.

A very small number of students forgot to bring their answering tools, but none of them forgot to bring food and water. A few minutes later, the bus arrived at the test center, and Tong Yuanhong was more like a nanny at this time, she did not mention the physical and technical points word by word, she paid more attention to the trivial details of the students' lives.

Lan Jie entered the examination room, he was fully prepared, come on, fight!

Ding Ding Ding!

At half past eight, the theory test paper was distributed to the contestants.

There are only three questions in this paper, each of which is worth 10 marks, for a total of 30 marks.

It's Olympic, it's pretty much the same as the IPhO routine.

In the first question, the teacher gave two light diagrams of the Kerr box, and asked the contestants to find the electric field strength value when the contrast is γ=0 and γ=1.

This question has both light and electricity, and the examination room is about the knowledge of the photoelectric effect and the skills of flexible use.

The first question is difficult at first glance, but it is indeed difficult to take a closer look!

No matter how difficult the physics problem is, it can't be difficult for Applejack!

Lanjie thinks deeply and analyzes deeply.

The light emitted from the upper half of the Kerr box is generally considered to be elliptically polarized light. In special cases, linearly polarized light.

The light emitted from the lower half of the Kerr box is always linearly polarized and vibrates in the same direction as the incident linearly polarized light.

If the upper half of the beam is linearly polarized, and the direction of vibration is perpendicular to the direction of vibration of the incoming polarized light, the upper and lower beams do not interfere, and the contrast degree is γ=0.

If the direction of vibration of the upper and lower beams of light is the same, interference will occur, and the contrast degree is γ=1 because the amplitude of the two beams of light is equal.

Analyze it here, and you know it in your heart!

Lan Jie has put pen to paper!

When γ=0, E=√20(k+1/2)V/m is obtained after some mathematical calculations.

When γ=1, after some mathematical calculations, E=√20kV/m is obtained.

When E takes other values, the contrast γ is between 0 and 1, and when E increases continuously from 0, the contrast γ will change from 1 to 0, and then from 0 to 1.

'it!'

'Treat yourself to a piece of cheesecake!'

'I'm done!'

'It's delicious!'

'Eat another piece!'

This one isn't as tasty as the last. ’

'Next!'

The second question is a mechanics question, which is super difficult!

The third question is a hot question, which is even more difficult!

It's not terrible against all odds, either it blows up, or you blow it up!

Lan Jie found the right way to solve the problem, so he didn't blow up the problem!

It only took two and a half hours (including eating and drinking) for Rangier to complete all three questions.

Among the four disciplines of science, Lan Jie's strongest is physics, and his super physical strength is vividly reflected in actual combat.

Ranger checked and checked, and he didn't think there was anything wrong, so he handed in the paper an hour and a half early.

It was 12 o'clock, the autumn wind was a little irritable, and the sun was just right. Tong Yuanhong has been waiting in the café at the entrance of the examination room, through the floor-to-ceiling glass, she can see Lan Jie, and Lan Jie can also see her.

Lan Jie entered the café and reported to Tong Yuanhong: "Teacher Tong, I have handed in the papers. ”

Tong Yuanhong was not in a hurry to ask Lan Jie about the exam, she said: "Lan Jie, sit, what are you eating? ”

"I ate a lot in the exam room, and I couldn't eat lunch. ”

"How's the test?"

"It's ok. ”

"What are the three questions?"

"Light, force, heat, the specific topic is like this......"

Lan Jie's memory in physics is extremely amazing, and he said the three questions of the theory test of the physical competition semi-finals verbatim.

"All three questions are difficult, and the most difficult one is the hot one. Our coach has talked about the knowledge points, and the teacher has never thought of the questions in this way, which is a new routine that appeared this year and is worth studying. Tong Yuanhong is a little dignified, she and her team have talked about all the knowledge points related to physical competition, but physics is ever-changing, and it is indeed too difficult to operate such a thing as accurate betting.

"Teacher Tong, tomorrow is also the time in the morning to gather at the gate of Yangzhong, and then go to take the experimental exam?"

"Yes. ”

"If there's nothing to do today, I'll go first?"

"Okay, Lanjie, go back and get some rest. ”

"Teacher Tong, bye-bye. ”