The larger the water droplets in the air when it rains, the less noticeable the rainbow will be afte

After the summer rains, the clouds disperse and the sun emerges, and a semicircular rainbow appears in the sky opposite the sun. Rainbows are caused by the emission and refraction of sunlight into water droplets in the sky. We know that when sunlight passes through the prism, the direction of the foreground is deflected, and the original white light is broken down into seven color bands: red, orange, yellow, green, cyan, blue, and violet.

After rain, many tiny water droplets float in the air, and when sunlight hits the small droplets, they are refracted and dispersed into 7 colors of light. Many small water droplets refract the sunlight at the same time, and then reflect it into our eyes, and we will see a semicircular rainbow. The color bands of the rainbow are distinct, with the red one coming out on the outside, followed by the six colors of orange, yellow, green, cyan, blue, and purple.

The size of the water droplets in the air determines the brightness and width of the rainbow. When the water droplets in the air are large, the rainbow is bright. It is also narrower; On the contrary, if the water droplets are small, the rainbow color will be lighter and wider.

We can't see the rainbow when we face the sun, we can only see the rainbow with the sun on our backs, so the color of the morning.

Rainbows appear in the west, and rainbows at dusk always appear in the east. But we can't see it, we can only see it when we look down from a high altitude by plane. The appearance of the rainbow is related to the change of the weather at that time, and we can generally infer from the position of the rainbow in the sky that there will be a sunny or rainy day at that time.

When there is a rainbow in the east, it is not easy for it to rain locally, but when there is a rainbow in the west, there is a high possibility of local rain. The visibility of a rainbow depends on the size of the small water droplets in the air, the larger the volume of the small water droplets, the brighter the rainbow formed, and the smaller the size of the small water droplets, the less obvious the rainbow formed. Generally, the temperature in winter is low, there are not easy small water droplets in the air, and there is less chance of showers, so there is generally no rainbow in winter, and the rainbow is an optical phenomenon in meteorology.

When sunlight hits raindrops in mid-air, the rays are refracted and reflected, forming an arched spectrum of colors across the sky. The rainbow colors are, from the outside to the inside: red, orange, yellow, green, cyan, blue, and purple.

In fact, as long as there is water in the air, it will appear just after the rain when the sky is clear. At this time, the air is less dusty and full of small water droplets, and one side of the sky is darker because there are still rain clouds. The rainbow will be easier to see if the sun is visible without clouds above or behind the observer's head.

Another place where rainbows are often seen is near waterfalls. Splashing water or spraying water mist in the air with your back to the sun on a sunny day can also artificially create a rainbow. Evening rainbow is a rare phenomenon that can occur at night when the moonlight is strong.

Because it is difficult for human vision to distinguish colors in low light at night, the evening rainbow appears to be completely white. Principle: Rainbows are formed by the dispersion and reflection of small droplets of water that are close to a circle when sunlight hits the sky. When sunlight hits a water droplet, it is incident at different angles at the same time, and it is reflected at different angles within the water droplet.

The size of the water droplets in the air determines the brightness and width of the rainbow. When the water droplets in the air are large, the rainbow is bright. It is also narrower; On the contrary, if the water droplets are small, the rainbow color will be lighter and wider.

The size of the water droplets in the air determines the brightness and width of the rainbow, and the larger the water droplets, the less favorable it is for its formation.

The formation of rainbows is due to the dispersion and reflection of water, and the larger the water droplets, the less favorable it is for the formation of this phenomenon.

Rainbows appear due to the refraction of light, and the larger the water droplets, the darker the rainbow will be, but it will be narrower.

Yes, a rainbow is formed by the continuous refraction of sunlight by many water droplets.

Rainbows are caused by the dispersion and reflection of small water droplets in the sky that are nearly round when sunlight hits the sky.

The raindrops are so big, you must not be able to see clearly, and if you can't see it, the rainbow is not obvious.

A rainbow is caused by the sunlight hitting the air with small water droplets that are almost round.

Do you know why rainbows appear in the sky after rain? Optical spectacle, visual delight.

After the rain, the small water droplets on the ground will have a bright color from a distance, so the sun reflects the light on the ground, and a rainbow is formed.

Because: that day, I came to the door and got up.

Choose my attitude to life blue sugar.

One by one, one by one, into the middle and again.

Because: after the summer rains, the clouds disperse, the sun reappears, and a semicircular rainbow often appears in the sky.

As early as the Northern Song Dynasty in China, there was a scientific explanation for the rainbow in the sky. At that time, Shen Kuo quoted Sun Yanguang as saying in "Dream Creek Writings": "Rainbow, rain shadow in the sun."

Sunshine and rain, there are. "Rainbows are caused by the reflection and refraction of sunlight into water droplets in the air.

We know that when sunlight passes through the prism, the direction of travel is deflected, and the original white light is broken down into bands of red, orange, yellow, green, blue, indigo, and violet.

When it rains, or after rain, the air is filled with countless tiny droplets of water that can deflect sunlight. When sunlight passes through water droplets, it not only changes the direction of travel, but also is decomposed into red, orange, yellow, green, blue, indigo, purple and other colors, and if the angle is right, it becomes the rainbow we see.

The size of the water droplets in the air determines the brightness of the rainbow. The larger the water droplets in the air, the brighter the rainbow. The smaller the water droplet, as large as a fog droplet, the lighter the rainbow color is, forming a white rainbow.

It has been determined that the average width of the rainbow is about 5 times the diameter of the sun as seen from the ground.

In the sky, not only one rainbow will appear, but sometimes two, three, or even five rainbows will appear at the same time, but this is relatively rare. If you shine the sun on the droplets of the fountain under artificial conditions, you can even see 17 rainbows. The reason for the formation of multiple rainbows is also caused by the reflection and refraction of sunlight in water droplets, but the route of light is more complicated.

So why is there often a rainbow after rain in the summer, but not in the winter?

Because there are often thunderstorms or showers in summer, the scope of these rains is not large, and it is often raining in the sky here and strong sunlight in the sky there. Sometimes, after the rain, there are many small water droplets floating in the sky, and when the sunlight passes through these small water droplets, the beautiful rainbow in the sky appears after reflection and refraction.

In winter, the weather is generally colder, the air is dry, there is less chance of rain, there are fewer showers, most of them are snowfall, and snowfall will not form rainbows, so rainbows are unlikely to appear in winter. However, in rare cases, rainbows can occur in the sky when the right conditions are in place to form them.

As the saying goes: "The sun is in the east, and the rain is in the west." "Depending on the direction in which the rainbow appears, it is possible to ** the weather in the future.

The rainbow is in the east, indicating the presence of rain in the atmosphere to the east of us. The atmosphere generally moves from west to east in a regular manner, and the bad weather in the east will only move further and further east, leaving us farther and farther away. If the rainbow is in the west, it means that there is rain in the atmosphere to the west of us, and with the movement of the atmosphere, the rain can easily fall on our place.

Therefore, when there is a rainbow in the east, it is not easy for it to rain locally; However, when there is a rainbow in the west, there is a high possibility of local rain.

That's because of the effect of sunlight shining on water molecules that are still floating in the sky.

Because there are water droplets in the air, the sun refracts them, and there is a beautiful rainbow

If you want to see it, I suggest you break an egg and shine it in a light.

I've only seen a rainbow once in my life, and I've seen a mirage a few times

The phenomenon of refraction and reflection of light.

Rainbows appear in the sky after rain because light is refracted and reflected as it passes through a layer of media. In the morning after the rain, the tiny droplets of water left in the air are irradiated by the sunlight, forming a semi-circular layer of small water droplets, which is the "manufacturing factory" of the rainbow.

When the light hits the water droplets, the refractive index of the water is higher than that of the air, and the light is tilted towards the water, and at the same time, a part of the land is reflected. As the light travels through the water, its direction shifts until it shoots out of the water. When the light hits the air, it will be refracted twice due to the change of the medium, causing the spectrum of the rainbow to be separated, forming seven colors: red, orange, yellow, green, cyan, blue, and violet, and these colors are mapped to present a beautiful rainbow.

It is worth mentioning that the color of the rainbow appears in a fixed order, starting from the outermost side, it is red, orange, yellow, green, cyan, blue, and violet, because the light of different colors is refracted at different angles in the water droplets, so they show different colors. <>

Rainbows are caused by the dispersion and reflection of small water droplets formed by the rain when sunlight hits the sky. When sunlight hits a water droplet, it will be incident at different angles at the same time, and it will be refracted at different angles within the water droplet. The reflection is strongest at 40 to 42 degrees, forming the rainbow we see.

In this reflection, sunlight enters the water droplet, is refracted once, then reflects on the back of the droplet, and finally refracts again when it leaves the droplet. Because water has a dispersive effect on light, the refractive index of light of different wavelengths is different, and the refractive angle of blue light is larger than that of red light. Since the light is reflected inside the water droplet, the observer sees the spectrum upside down, with red light at the top and other colors at the bottom, and then up

Red (red) - orange - yellow - green - blue - violet: below

Dear, can I help you?,10,When the light arrives from one medium to another, the direction of travel will change, that is, the refraction of light, after the rain, there will be a lot of small water droplets in the air boy's friendship, and the seven kinds of light emitted by the sun will appear on the small water droplets, 2, because it has just rained, and the weather is sunny, the water evaporates in the air and gathers to form small water droplets, and the refractive index of the water droplets and the air is different after being irradiated by the sun, so the light is reduced to seven kinds of monochromatic light, so you can see the rainbow, 0,