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What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )?
Ans) Initial PE= - GMm/R
Final PE = - GMm/3R
Change in PE=Work Done= 2GMm/3R (ANS.)
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explain and give examples of the two types of current
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describe the principle, construction and working of Michelson Interferometer.
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