Question

when we sit around a camp fire, the face of the person sitting opposite to you,appears shimmer. explain why?

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Answer 1

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Twinkling is defined as “to shine brightly and intermittently”. Twinkling occurs due to refraction of light. Refraction, to put it simply, is the change in the direction of light when it passes from one medium to another. Refraction can also occur when changes occur in the density of the medium through which light is passing.

At a campfire, the density of the hot air near the flames is lower than that of the air farther away. Also, hot air is constantly moving up.

So, at a campfire, the light reflected from the face of the opposite person first passes through the cooler air and then through the warmer air near the flames. As a result, it bends and the face of the person appears to change in brightness and position. This is what we call twinkling.

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Answer 2

ahoy girl :)

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when we sit around a camp fire, the face of the other person sitting opposite to us appears shimmer this is because the various gases present around the fire and the water molecules bring about differences in the density of air thereby light has to pass through different refractive indexes because of which the light ray coming from the opposite person bends many times before reaching our eyes.

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