What is frequency of sound in air?
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what happens to the period of a simple pendulum taken into a deep mine
Explain the Machines ?
Who first described how shock waves are formed?
Explain how does the elevation and air pressure affect the boiling point of water?
the magnifying power of a simple microscope can be increased if we use eye piece of
is the below statement correct. the force of attraction of earth on a man, who is inside the artificial satellite is zero
Graph between frequency of photon and velocity of photo electron?
What is the universal law of universal gravitation?
why the air temperature drops more on clear nights than on cloudy nights?
Why is one?s breath visible in cold, but not in not in hot weather ?
Define Nucleus?
while climbing a hill we bend forward please explain the reason for bending