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Q. Why laser is used in the pipe alignment?
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Q. When hot liquid is poured into a thick glass tumbler, it cracks because glass :
Q. Newton's second law of motion ............
Q. Which of the given waves is used for communication by artificial satellites
Q. How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?
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Q. The hydraulic brakes used in automobiles is a direct application of
Q. Tungsten is used for the manufacture of the filament of an electric bulb, because
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