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The angular momentum of a satellite depends on which of the following?
The antiparticle of an electron is
The apparatus used to measure the intensity of light is known as
The apparent weight of a man in a lift is less the real weight when
The atmosphere is heated mainly by
The atmospheric air is held to the Earth by :
The atmospheric pressure at sea level is ........ atm.
The atomic spectra of hydrogen are explained by
The audible range of sound for an average adult human being is _.
The audio signals of TV are
