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Q. Red light is used for signals as it has
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Q. The weakest of all fundamental forces is
Q. Aviation fuel for jet aeroplane consists of purified
Q. Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit
Q. Which of the following waved/ rays are produced by nuclear changes in the atom?
Q. The nucleus of an atom consists of
Q. A star appears twinkling in the sky because of
Q. Which of the following units measure atmospheric pressure?
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