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Q. A star appears twinkling in the sky because of
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Q. It is more difficult to walk on a sandy road than on a concrete road because
Q. Which of the following Material has lowest resistivity?
Q. Heat from the sun reaches earth by the process of
Q. Radio telescopes are better than optical telescopes because
Q. If the phase difference between two points is 120° for a wave with velocity of 360 m/ & freq...
Q. The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by
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