Physics: Laser
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LASER Laser is a device that stimulates atoms or molecules to emit light at a particular …
Physics: Non Metals And Their Compounds
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Non metals and their compounds Carbon Carbon occurs naturally as diamond and graphite. It also occurs …
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Newton’s laws of motion (A)first law of motion and its application A body will continue in …
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Metals and their compounds Extraction of metals: it is the process by which metals are isolated …
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Chemistry: Periodic Table
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Periodic table Historical development of periodic table Classification of the elements began with Lavoisier, whose classification …