Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly 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 Reflect back the heat given by earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective lens combinations of lenses None of these mirror lens combinations of lenses None of these mirror 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 24 cm 12 cm 6 cm 1 cm 24 cm 12 cm 6 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Acceleration is Inversely proportional to mass Directly proportional to force Directly proportional to mass Inversely proportional to force Inversely proportional to mass Directly proportional to force Directly proportional to mass Inversely proportional to force ANSWER DOWNLOAD EXAMIANS APP
Physics In general, which is the cause of a land breeze? Pressure Temperature None of these Heat Pressure Temperature None of these Heat ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the shortest wavelength? Gamma rays Microwaves Infrared rays Radio waves Gamma rays Microwaves Infrared rays Radio waves ANSWER DOWNLOAD EXAMIANS APP
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