揽瓜阁阅读做题小分队 第124天 海浪与光波

ArielWen

Official Explanation:
3. A scientist makes new observations and learns that water waves of shorter wavelengths spread in all directions not only because they scatter off piers but also because they interact with previously scattered short water waves. Drawing upon the analogy between water waves and light waves, we might hypothesize which of the following?

Explanation

This is an application question since it introduces new information about water waves and asks us to conclude how the behavior of light waves might be similarly affected. Given this information, however, we can justify no conclusion about whether light waves imitate water waves in this new regard. The analogy might hold or it might break down. We don’t yet know. (To find out we would have to do an experiment using light.)

The answer is (D).

ArielWen

第五题解析：
5. From the information presented in the passage, what can we conclude about the color of the sky on a day with a large quantity of dust in the air?

Explanation

(A): No. Although dust is mentioned as one of the three important obstacles (lines 16–17), we simply do not have enough information to conclude how dust density would change sky color.

(B): No. While this idea may fit with the common lore that a lot of dust in the air creates great, red sunsets, the passage itself gives no basis to any conclusion regarding color change.

(C): No. Same reason as in (A) and (B).

(D): Yes. There is not enough information in the passage to determine a relationship between color change and dust density. The dust may give off a certain color of its own—we can’t say for certain.

The answer is (D).

程畅2001

Introduce the phenomenon: columns, large waves vs short waves and ripples. No effects on long waves, but scatters the short ripples.

Sunlight through the atmosphere. Light-waves, air/water/dust-columns.


Sunlight has different lights of colors, light consists of waves. So when passing through the atmosphere, the long wave (red)not affected, short waves (blue) are scattered in all directions.

Consequently, the blue waves of the sunlight enter our eyes
from all directions. And that is why the sky looks blue.

NikitaHan

海浪与光波
一段：设想我们站在码头上，看海浪冲向码头的柱子上。大海浪根本就不管柱子在不在那里，直接冲上来，然后在柱子的两边分开之后又合在一起。就像是纪律严明的士兵，面对一棵树在他的面前，海浪根本就当作柱子不存在一样。但是小海浪和涟漪面对柱子的反应就不一样，他们会把柱子当作是障碍物，当撞上柱子时，涟漪会被反弹回去，并向四面八方形成新的涟漪。专业术语就是被分散了。大的海浪则不会被分散。
二段：我们一直在观察太阳光是如何传播到地球上的，地球有着厚厚的大气层，包括灰尘，水滴，以及空气都是障碍物。这些障碍物就像是码头上的柱子一样的效果。

三段：我们都知道太阳光是由不同的颜色组成的，同样不同颜色的光是由不同波长的光波形成的。这些不同波长的光波被大气里的这些障碍物所阻挡，长波长的光波很少受到影响，而波长短的光波则会受到阻碍。

四段：红光的波长比较长，蓝光的波长短。所以，蓝光将会被分散，经过不同的障碍物，则会被不断的分散到各个方向，最终传播到我们的眼睛。这也是为什么我们看到的天空是蓝色的。

作者观点：由我们可见的海浪引出太阳光的传播，并解释了我们看到的天空是蓝色的原因。

屯个名字

P1:iron columns of the pier对大/小波浪的影响
The obstacle provided by the iron columns hardly affects the long waves at all, but scatters the short ripples.

P2:air particles= columns of the pier

P3: air particles怎么影响light waves
1.waves of the sea represent the sunlight
2.Colorful waves<—— rainbow
3.waves with different color has different lengths
4.Red-large waves; blue-short waves
5. The long waves which constitute red light are hardly affected, but the short waves which constitute blue light are scattered in all directions.

P4:光线如何被air particles处理
Blue light- frequently scattered——>blue sky

CDABACD 11'13"

BLAZEBLAZE

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BLAZEBLAZE

BLAZEBLAZE 发表于 2023-9-22 20:16

不好意思发错了