Question

How to rainbow form?​

Answer 1

Answer:

A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.

Explanation:

Answer 2

Answer:

Step 1: The main reason behind the formation of a rainbow, that is the semi-circular band of 7 colors that you see in the sky, is basic physics. Reflection and refraction of light is what causes the formation of the spectrum, which is the breakdown of white light into its basic colors.

Step 2: In order for a rainbow to be formed, it is necessary for the fundamental components of reflection to be present: light and a reflecting surface. Here, the light is the sun’s rays and the reflecting surface is the drops of water.

Step 3: When light emanates from the sun, it is in its pure form, i.e., white light. When this white light reaches the surface of a water droplet at the appropriate angle, it breaks down into the spectrum of colors. This spectrum reaches the inner most point at the top of the water drop and gets reflected onto the lowermost point in the drop.

Step 4: This spectrum gets refracted from this lowermost point, gets dispersed, and escapes the water droplet.

Step 5: This dispersed spectrum of colors is what we see as the rainbow. An interesting tidbit is that within the droplet, the rainbow colors are in the order of red, orange, yellow, green, blue, indigo, and violet, but when they get refracted and are seen in the sky by the human eye, they are perceived to be in the opposite order, which is violet, indigo, blue, green, yellow, orange, and red. So, the first color in the actual spectrum is seen as the last one by us.

As mentioned earlier, how rainbows form is not at all as glamorous or fantastic as imagined. Nonetheless, we can always continue to indulge ourselves in fantastical beliefs, as long as we know what the truth is.

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