Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth ANSWER DOWNLOAD EXAMIANS APP
Physics The layer of atmosphere used for radio-wave transmission is Chromosphere Ionosphere Troposphere Stratosphere Chromosphere Ionosphere Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound in air is unaffected by change in Pressure Humidity Temperature Volume Pressure Humidity Temperature Volume ANSWER DOWNLOAD EXAMIANS APP
Physics For which one of the following, ''Diodes' are generally used for? Rectification Amplification Modulation Filtration Rectification Amplification Modulation Filtration ANSWER DOWNLOAD EXAMIANS APP
Physics One nanometer is equal to ________ meters. 10 raised to the power (-12) 10 raised to the power (-9) 10 raised to the power (-6) 10 raised to the power (-3) 10 raised to the power (-12) 10 raised to the power (-9) 10 raised to the power (-6) 10 raised to the power (-3) ANSWER DOWNLOAD EXAMIANS APP
Physics Electrons carry a Variable Charge Positive Charge Negative Charge Neutral Charge Variable Charge Positive Charge Negative Charge Neutral Charge ANSWER DOWNLOAD EXAMIANS APP
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