American Aeronautical Organization NASA has made a super concept. Upto 2021 NASA has thought to release oxygen in Mars planet that may help ...

Electrons and Photons  1. Discuss the physical principles Invovoled in Milikan's experiment for the determination of the charge of an e...

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Measurement About the scientist Christian Huygens Christian Huygens was a Dutch mathematician and physicist. He made very important contribu...

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Electrons and Photons- Short Question-Answers 1. What is threshold frequency? Ans. There is a certain minimum frequency of radiation below w...

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