The sunlight we see is coming from the sun about a few seconds ago

Because 1 light year is 9,460.5 billion kilometers 6,300 kilometers and the speed of light is 300,000 kilometers and seconds, the time it takes for the sun's rays to reach the earth is about minutes, and the sun is about light-years away from the earth.

According to the distance between the Sun and the Earth is 100 million kilometers, the speed of light in a vacuum is 300,000 kilometers per second, which takes about 8 minutes and 20 seconds; The distance between the Sun and the Earth is calculated at an exact point of 100 million kilometers, which takes about 8 minutes 16 seconds 7.

Of course, this is very imprecise, because it also involves the change in the velocity of light after it enters the atmosphere (although this change is not very large, it can be said that it is small, because the thickness of the atmosphere is too small for the speed of light in seconds), the Earth's orbit is elliptical, and so on.

Therefore, the time it takes for sunlight to reach the earth is about 8 minutes 16 seconds to 8 minutes and 20 seconds.

First of all, the owner knows that the speed of light is about 300,000 kilometers and seconds, and the distance between the Sun and the Earth is multiplied by 10 to the eighth power. I don't know what unit the landlord wants the answer to? The following answers are seconds, minutes, and hours.

150000000km (300000km s) = 500s 500 seconds divided by 60 seconds per minute equals minutes.

500 seconds divided by 3600 seconds per hour equals approximately an hour.

The sunlight you see coming to Earth from the surface of the sun 8 minutes and 20 seconds ago. The calculation process is also very simple, the orbit of the earth around the sun is elliptical, the distance between the sun at perihelion: 100 million kilometers, and the distance between aphelion is sun

100 million kilometers. The average length is 100 million kilometers, the speed of light in the vacuum pump is more than 300,000 kilometers per second, and the result of simple multiplication is 8 minutes and 20 seconds.

The Sun is an ordinary planet in space, a red dwarf with a medium-quality red dwarf star with a lifetime of about 10 billion light-years, and after about 5 billion light-years, it will become a high-density star-white dwarf. Sunlight occurs because the inner core of the sun undergoes a nuclear reaction under the premise of the collapse of its own attraction, releasing light and heat. This means that the photon is caused by the inner core of the sun to penetrate the sun to the earth, so some people are likely to say that the radius of the sun is more than 690,000 kilometers, so at 8 minutes and 20 seconds, it is basically about 2 seconds, is that really the case?

In fact, no, in simple terms, photons do not move parallel lines inside the sun, they are like headless flies that have to change direction every time they hit other particles, and they hit out head by head, and when they come to the surface of the sun, it will not take about 2 seconds. This question is calculated in George Gamov's popular science book "From One to Infinity" as follows:

The random path of the photon in the sun is 1 cm, and the half longitude of the sun is about 700000000000 cm, so the photon needs to turn 5 10 to the 21st power to reach the surface. Each leg of the journey must be 3 10 to the minus 11th power, and the common duration of the whole journey is about 11 seconds, which is about 5000 years. The above is the shortest time, which is likely to take more than 100,000 years at most.

Yes, it was formed 8 minutes ago, because the sunlight will hit the surface of the earth at 8 minutes, and we can see it.

It is true that it was formed 8 minutes ago, and the sunlight we see is not directly visible at all, because the sun is very far away from us.

Yes, but this data is not particularly accurate, because with our current scientific strength, there is no way to calculate the lifetime of photons, and the distance between the earth and the sun is constantly changing.

Is the sunlight seen on Earth emitted by the sun about a few minutes before it changes?

a.Seven stools blindly divide the base clock.

b.Eight minutes.

Correct answer: B

The sunlight that we see is actually the sunlight that our hands have emitted before.

a.One minute.

b.Three minutes.

c.Seven minutes call the first bell.

d.Eight minutes (correct answer).

Answer D Question Analysis: The solar atmosphere is divided from the inside to the outside: photosphere, chromosphere and corona. And the naked eye can see inside.

Only the photosphere, chromosphere, and corona can only be seen during a total solar eclipse.

Test Center: This question examines the stratification of the solar atmosphere.

Comments: The key to solving this question is to understand the stratification law of the solar atmosphere, and the knowledge test questions.

Summary. Hello dear, I am happy to answer your question, the sun emitted a dazzling light in an instant, is this sentence reasonableAnswer: Hello, the sun emits a dazzling light in an instant, this sentence is unreasonable, and it is not reasonable in physics.

But from a literary or rhetorical point of view, this sentence can be understood as observing a particularly bright side of the sun at a certain moment, creating a strong visual impression. This expression is often used in literary works or when describing natural phenomena, and can add sensual color and artistic sense to the text. Hope it helps<>

Is it reasonable for the sun to shine brightly for a moment?

Dear, hello, I'm glad to answer your question, the sun emitted a dazzling light in an instant, is this sentence reasonableAnswer: Hello, the sun emitted a dazzling light in an instant, this sentence is unreasonable, and it is not reasonable in physics. But from a literary or rhetorical point of view, this sentence can be understood as observing a particularly bright side of the sun at a certain moment, creating a strong visual impression.

This expression is often used in literary works or when describing natural phenomena, and can add sensual color and artistic sense to the text. Hope it helps<>

Expansion and supplementation: In literature or rhetoric, there are many rhetorical devices such as exaggeration, metaphor, and personification, which can make words more vivid and interesting, but they generally do not conform to the facts in science or practical life. Therefore, when carrying out literary creation or rhetorical expression, it is necessary to choose the appropriate way of expression according to the specific situation and purpose, and cannot simply confuse literary expression with scientific facts.

The sun shines brightly, and the sentence is expanded in at least two places.

Hello, can you tell the teacher in detail about your specific problem.

Hello, the Sun is a star that emits not only bright light, but also heat and other radiation. These include visible light, ultraviolet rays, X-ray rays, and gamma rays. Among them, visible light is the most obvious type of radiation, and it is also the most familiar one in our daily life.

When the sun's rays pass through the atmosphere and are scattered, beautiful sunrise and sunset scenes are created. In addition, the sun's rays are still the energy of all life on the earth**, and without the sun's light, life on the earth will not survive.

To be honest, before the development of science now, all the people in the world believed that the earth was the core of the universe, and with the development of our astrophysics, Galileo's telescope proved heliocentrism. Although in a way, the sun is not a cosmic thing, but in the solar system, the sun is still the big brother in the true sense of the word. Especially for us, the earth, a living planet, almost all the energy on our earth is ** the sun, and only a very small part of the light emitted is from the geothermal heat that escapes from the center of the earth.

Of course, the sun's rays not only give us the heat necessary for biological development, but also light. It can be said that human beings have a long-standing yearning for light. In ancient times, many people regarded the sun as a deity, and they made regular offerings to him every year.

Although our understanding of light has deepened, coupled with the advancement of technology, we understand that it is a long journey for sunlight to reach our earth. After all, the sun is 1.5 billion kilometers away from the earth, and even if sunlight can travel at a speed of 300,000 kilometers per second, it will still take eight minutes and 20 seconds to reach our earth. <>

Therefore, every ray of sunlight we see during the day is actually emitted by the sun eight minutes and 20 seconds ago. However, there are also some theories that the sunlight we see is actually the light emitted by the sun tens of thousands of years ago, and the reason why there is such a thesis is mainly because the appearance of the sun itself is not actually a luminous body, and the real luminous ** lies in the core of the sun. There is extremely high pressure and temperature, which causes the core of the sun to undergo constant nuclear fusion reactions.

But it is not easy for these rays to easily leave the core of the sun, because the density of the sun is very large, and when these plasma rays want to escape from the sun, they will collide with the ions in its depths and refract them. The whole process is random, and some scientists have theorized that it has taken tens of millions of years for the light from the center of the sun to reach the surface of the sun. But whether it is eight minutes and 20 seconds or tens of thousands of years of sunlight, the sunlight we see is actually emitted by the sun before.

It was emitted in the past, and the sunlight we saw was emitted from the Sun about eight minutes ago, and the average distance between the Earth and the Sun was 149,590,787 kilometers. The speed of light is 299,792 km/s. So on average, it takes 499 seconds, which is about 8 minutes and 19 seconds.

Yes, the sunlight we see is emitted by the sun in the past, because the sun is relatively far away from the earth, and it takes a certain amount of time for the light to reach the earth.

Yes. Because the distance between the Earth and the Sun is so far, the light emitted has to travel a long way to reach the Earth, and there is a time lag.

The sunlight we see is emitted by the sun eight minutes ago, because 1 light year is 9,460.5 billion kilometers 6,300 r, and the speed of light is 300,000 kilometers and seconds, so the time it takes for the sun's rays to reach the earth is about a minute.