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  • A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?

A motor car, with its glass closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?

Answers (1)

Infrared radiations in sunlight pass through the glass and heat the interior of the car. The radiation emitted by upholstery and other inner parts of the car cannot pass out of the glass, so the heat trapped inside raises the temperature of the interior. This is because glass is transparent to infrared radiation from the Sun having smaller wavelengths than that emitted by the interior of the car which are of longer wavelengths to which the glass is opaque.

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