mafia's angle
The angle between the reflection angle and the incident angle increases
According to the law of reflection, the angle of reflection is equal to the angle of incidence. If the angle between the reflection angle and the incident angle increases, let the angle increase be the angle of the reflection angle, then it may be that the normal line is close to or far away from the incident ray, causing the incident angle to increase or decrease by the angle of the reflection angle. Because the reflection angle is equal to the incident angle, the reflection angle will also increase or decrease by the angle of the reflection angle, so that the angle between the reflection ray and the incident ray increases or decreases by the angle of the reflection angle. For example, in the problem of mirror rotation, if the normal line is far away from the incident light, the incident angle increases by angle (a), the reflection angle also increases by angle (a), and the angle between the reflected light and the incident light increases by angle (2a).
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-07-15 00:33
Is the reflection angle as large as the incident angle?
In diffuse reflection, the reflection angle and the incident angle are the same. Diffuse reflection was a reflection phenomenon caused by the rough surface of the reflective surface. All reflected light followed the relationship of the incident angle being equal to the reflection angle.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-09-08 19:59
Primary school mathematics, right angle, acute angle, obtuse angle
In primary school mathematics, a right angle was 90°, an acute angle was greater than 0° but less than 90°, and an obtuse angle was greater than 90° but less than 180°.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-10-04 20:22
It's clearly not an angle novel
It's Obviously Not Angle was a novel published in 2008 by Kachi. In the story, Li Boya's parents divorced when she was young, and her mother committed suicide by cutting her wrist because of her father's unrequited love. This made her extremely cold and unbelieving in relationships. Fate allowed her to meet Mu Yanluo, Chu Yiyu, Cen Qi, Chen Yinshang, and other outstanding boys with different personalities. Their love gradually warmed her heart. After experiencing many tests, her sleeping happiness woke up, and her lost happiness returned. However, the road to love was rugged. In the end, it was uncertain whether she could get the favor of fate and who she would hold hands with.
While waiting for the TV series, he could also read the exciting content related to this site!
1 answer
2026-09-21 21:51
How to calculate the reflection angle and refraction angle
The angle of reflection was equal to the angle of incidence. In junior high school physics, the angle of incidence was usually represented by i, and the angle of reflection was represented by r. Therefore, the angle of reflection could be obtained from the angle of incidence.
The angle of refraction can be calculated using the formula n=c/v=sinA /sinB, n = sini:sinr, where n is the index of refraction, c is the speed of light in vacuum, v is the speed of light in the medium, A is the angle of incidence, and B is the angle of refraction. It can also be calculated according to the formula sin 6i/sin 6t =n21, where the angle of incidence is represented by 6i, the angle of refraction is represented by 6t, and n21 is the relative index of refraction of the second medium to the first medium.
In addition, when light enters water or other media diagonally from the air, the angle of refraction is smaller than the angle of incidence. When the angle of incidence increases, the angle of refraction increases. When light enters air diagonally from water or other media, the angle of refraction is greater than the angle of incidence. When light enters vertically from the air (or other media), the direction of transmission does not change. At this time, the angle of incidence, the angle of reflection, and the angle of refraction are all equal to 0°.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-08-19 09:45
At most, there is a counter-proof that the angle is a right angle
When using reduction to absurdity to prove that "at most one angle is a right angle," one first had to raise the proposition that "at most one angle is a right angle," and then set the anti-proposition that "at most two or three angles are right angles."(Since the original proposition indicated that the number of right angles was at most one, then the contradiction was that the number of right angles was two or three). Next, he deduced according to the rules of reasoning to prove the falsehood of the counter-proposition. Finally, according to the Law of Excluded Middle, since the opposite proposition was false, the original proposition that "at most one angle is a right angle" was true.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-07-15 11:24
Earth's tilt angle and direction
The angle between the Earth's axis of rotation and the plane of its orbit was about 23.5 degrees. When the Earth revolved, the tilt of the Earth's axis remained unchanged, and the northern end always pointed near the North Star.
1 answer
2026-02-14 07:35
Bride's makeup camera angle
When shooting the bride's makeup scene, there were many angles to choose from. It was possible to go from a long shot to a close-up shot. Close-ups could capture the fine shots and details of makeup. They could also find the bride's best position to capture the most beautiful moment during the makeup process. In addition, for the bride with a fat face, she could slightly turn her face sideways, use a 45-degree turn to shoot sideways, slightly lower her chin, or use flowers and accessories to cover her face to adjust the shooting angle. This would make the face more three-dimensional and avoid some visual problems caused by looking directly at the camera.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-07-25 13:52
What's the best angle for the lens?
The shooting angle of the wide-angle lens was about 60°-84 °, but there was no absolute " best " angle. Different shooting scenes and needs might be suitable for different angles. For example, when shooting streets, buildings, or landscapes, the new ultra-wide angle lens of the iPhone 11 and 11 Pro could shoot a wide image with a 120° angle of view; in some street scenes that needed to reduce distortion and accommodate more information, a wide-angle lens angle of about 60° - 84° was more suitable. In addition, some shooting techniques such as moving the camera down, low angle or super high angle shooting could be used to create unique visual effects from different angles. At the same time, he also had to pay attention to the problems that the wide-angle lens might bring, such as perspective distortion and dark angles. He had to choose and use different angles according to the actual situation.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-10-10 17:18
The physics principle that the angle of incidence equals the angle of reflection
Starting from the principle that light always travels along the fastest path, Helen discovered that the angle of incidence was equal to the angle of reflection. When light travels to different substances, it will be reflected at the interface. The reflected light, the incident light, and the normal line are on the same plane. The reflected light and the incident light are separated on both sides of the normal line, and the reflection angle is equal to the incident angle. It can be summarized as "three lines are in the same plane, two lines are separated, and two angles are equal." This phenomenon was consistent with the law of reflection. Hiro of Alexandria in the 1st century AD first described the relevant content of the law of reflection. In 1823, fresnel introduced the quantitative law of the law of reflection and the law of refraction (fresnel formula). This law holds true when light is shot from one medium to another, such as light from air into water or glass into air. It is widely used in the field of light to explain the reflection of light and related optical phenomena.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1 answer
2026-10-13 17:33
Popular Answers
Popular Searches
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z