Physics Sources of geothermal power are None of these Earth's heat Water Both A & B None of these Earth's heat Water Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 1 T 8 T 4 T 2 T 1 T 8 T 4 T 2 T ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 1 cm 12 cm 24 cm 6 cm 1 cm 12 cm 24 cm 6 cm ANSWER DOWNLOAD EXAMIANS APP
Physics A nuclear reactor is said to have become 'critical' when It is ready to produce controlled energy It starts emitting dangerous radioactive radiations It stops due to malfunctioning It is shut down to avoid explosion It is ready to produce controlled energy It starts emitting dangerous radioactive radiations It stops due to malfunctioning It is shut down to avoid explosion ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth ANSWER DOWNLOAD EXAMIANS APP
Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 0.41666666666667 24 A 8.5 A 0.41666666666667 24 A 8.5 A ANSWER DOWNLOAD EXAMIANS APP
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