Chapter 209 (2/2)
”Wow.” Duan Peipei was fascinated.
Under the repeated attacks of Li Zheng and Lin Yue Jing, in front of Qi Yingnan, the real big man, she has unconsciously put down her arrogance and slowness and has become a shocking baby.
”Therefore, the degree of Lin Yue Jing is not yet clear.” Qi Yingnan put his hands together, raised his arms and stretched his tendons. ”One thing I want to make clear is that I started to prepare for the experiment since I was a freshman in high school. Last year, when the provincial team was training, I didn't have the qualification to compete, but the experimental result was the third.”
”Wow
”So, I probably won't do the experiment according to teacher Fu's rhythm. I'll play according to my own ideas more often. Don't mind.”
”Wow! I don't mind. ”
”Yes.” Qi Yingnan turned to look at Li and Lin, who were struggling with each other. His eyes narrowed. ”These two goods are showing love in the training class. Let's just study hard and kill them if possible.”
”Wow Duan Peipei's eyes brightened, ”then I'll hold your thigh.”
”We can't talk about it. We should improve together.”
……
The first experimental class will begin soon.
Because it is the improvement class of the provincial team, the basic content will be naturally skipped and the real exercise will be carried out directly.
Without saying a word, Fu Xuefeng wrote a hot topic -
[measuring the refractive index of transparent container and liquid]
this is the most common optical experiment problem. He hit a beam of light on a cup containing an unknown liquid, drew the light path diagram on the coordinate paper, measured and calculated, answered the question and wrote the report.
After demonstrating + explaining the key points of the experiment, we will enter the group experiment time.
In the face of this kind of basic problem, everyone started without any hesitation.
Fu Xuefeng inspected and guided him all the way. Seeing that most of the people were familiar with them, he felt much better.
In the previous theoretical examination, the questions were both difficult and partial, which led to everyone's failure in the test, which made Fu Xuefeng doubt the level of the students in this class.
Now it seems that we are totally over worried. Obviously, we are all well prepared, but we are confused by partial topics. We are really old-fashioned when we start experiments.
In particular, Qi Yingnan's group, no matter in terms of speed, accuracy or stability, has reached the level of the top several provincial teams in previous years.Fu Xuefeng basically looked at everyone around, and finally went to Li Zheng and Lin Yujing.
No way, the most delicious, always wait until the end.
Come on, let me see the 90 point field!
Although Fu Xuefeng looked forward to it, he did not rush to pass from the front, but slowly approached from the back.
It has to be said that he has some bad taste. He expects not only the results of their experiments, but also their interaction.
He did not know that the situation was far more anxious than he had imagined.
Li Zheng wiped his sweat, glared and asked, ”I have listed all the formulas for a long time. Can't you adjust the laser pointer?”
”No It's said that if you want to be in the best condition, what is the best state? ”
”Just fine?”
”Too thin to see?”
”Then you can see it?”
”Yes But what is it called just being able to see? ”
”No matter, let's just do it...” Lin Qijing began to fix the laser pen on the test bench, ”is this how twisted?”
”You scratch the cat's hair here? It's too slow. I'll do it Li Zheng turned the knob forward, ”screw it to death, so that the light is stable.”
”Right...”
”Hard Try to... ”
”No If you screw the laser pen again, it will blow up? ”
”Hi, German. We can make it hard Jinghua doesn't have money. I just want to try the pressure tolerance limit of the laser pen... ”
”Goodbye...”
Two people spent nine cattle two tiger's strength, finally played the laser.
While measuring and drawing a light map, Li Zheng accidentally touches Lin Yujing's hand. Lin Yujing shivers and spills the cup.
“！！！” Li Zheng said grimly, ”you...”
”It's all your fault!”
”What's wrong with me?”
”I blame you Quickly refill the liquid... ”
”Oh, I didn't expect your hands to be so stupid. I'm afraid the cerebellum doesn't grow well.” When Li Zheng and other Lin Yujing filled up new liquid, they looked up and looked around with some anxiety, ”not good The others have already finished it... ”
”Whatever they do...”
”No, I have to fill in the experimental report somehow.” Li Zheng took a deep breath, ”go astray.”
”Heresy?”
”People in our group have said that there are four evil functions in physical experiments.” Li Zheng gasped for breath and raised his hand in fear to compare with each other --
”measuring the specific heat capacity of unknown liquid by taste method.”
”Measuring the frequency of waves by hand.”
”Measuring the internal structure of the black box by the screw driver method.”
”Peel the resistance.”
After saying that, Li Zhengning to that cup of unknown liquid.
”The refractive index can't be measured by tasting I probably remember the refractive index of common liquids, so long as I can taste it, I can get the answer directly. ”
”Calculate Forget it... ” Lin Qijing quickly protected the unknown liquid, ”what if it was poisonous Even if there is no poison, you can't stand hydrochloric acid... ”
”No, for safety reasons, teachers won't take too dangerous solutions.” Li Zheng some fanatically stare at the unknown liquid, ”occasionally try evil work, also can be regarded as an experience.”
”Forget it The tongue is not renewable And can you really taste the difference between hydrochloric acid and sulfuric acid? ” Lin Yue Jing was so scared that she hid the bottle behind her. ”I'm not afraid that I can only say 'Oh'
”I'll just try one drop, just one drop...”
Behind the table, Fu Xuefeng can't stand it.
”Cough!”
They were startled.
”You two Come out for a moment... ”
Then he went out first with a calm face.
”Let you practice evil skill!” After Lin qiojing scolded, he put down the liquid and slipped away with his head down.
Li Zheng just sighed, looked at the liquid, still did not resist, touched a drop, confirmed that there was no feeling, and then licked.
Sugar water
Well Fill in the refractive index by 1.3.
After filling in, he went out.
”Ha Qi Yingnan turned his head to gloat, ”no, Li Zheng, for such a long time, he didn't even draw the coordinate map.”
”What was the result?” Li Zheng only asked, ”1.3?”
“…… You It would not... ”
”Well.” Li Zheng nodded in silence, ”evil force...”
“……”
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