Science & Technology –3

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Why do all metals turn red when heated? Red is the colour that indicates the temperature of the hot metal. Red is the first colour when a metal is heated, is seen.   Can animals distinguish colours? No.   Why … Read More

Science & Technology — 2

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What is blue moon? If there come two “full moon ” s  in a month the first one is called fullmoon day and the other is called “blue Moon”.   Which isotope isotope can trace out the source of water? … Read More

Science & Technology — 1

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How is it possible to transmit a number of channels through the same cable? Transmitting a number of channels through the same cable is possible because of frequency division multiplexing. Any signal can be broken down into sine wave components … Read More

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