Four test tubes are filled with 10 ml of water each, and placed 10 cm away from the light bulb.The initial temperature of each test tube is measured.The tubes are then left in full exposure of the reflected rays.The temperature of each tube is taken every 5 minutes for 15 minutes.Which tube will experience the second highest rise in temperature at the end of the experiment?A- Matt BlackD- Shiny BlackC- Shiny SilverB- Matt White
Question
Four test tubes are filled with 10 ml of water each, and placed 10 cm away from the light bulb.The initial temperature of each test tube is measured.The tubes are then left in full exposure of the reflected rays.The temperature of each tube is taken every 5 minutes for 15 minutes.Which tube will experience the second highest rise in temperature at the end of the experiment?A- Matt BlackD- Shiny BlackC- Shiny SilverB- Matt White
Solution
The tube that will experience the second highest rise in temperature at the end of the experiment is likely to be the Shiny Black tube (D).
Here's the reasoning:
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Matt Black (A): This tube will absorb the most heat because dark colors absorb more heat and matte surfaces are not reflective, so they absorb rather than reflect light.
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Shiny Black (D): This tube will absorb the second most heat. Even though it's black and will absorb a lot of heat, its shiny surface will reflect some of the light, making it absorb less heat than the matte black tube.
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Matt White (B): This tube will absorb less heat than the black tubes because white reflects more light than black. However, its matte surface will absorb more heat than a shiny surface.
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Shiny Silver (C): This tube will absorb the least heat because silver is very reflective and will reflect most of the light, and therefore heat, away.
So, the tube with the second highest rise in temperature should be the Shiny Black tube (D).
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