Q. Masses of stars and galaxies are usually expressed in terms of
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Q. Photon is the fundamental unit/quantum of
Q. Which of the following liquids has the least density ?
Q. Which of the following sound cannot move?
Q. Blotting paper absorbs ink due to
Q. The force that generates wind is
Q. ML2T-2 is the dimensional formula for
Q. The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as –
Q. Decibel is the unit of physical quantity used for
Q. The density of the liquid when heated
Q. In mirrors the back surface is coated with a thin layer of :
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