Physics One watt-hour is equivalent to 6.3 x 10-7 J 3.6 x 103 J 6.3 x 103 J 3.6 x 10-3 J 6.3 x 10-7 J 3.6 x 103 J 6.3 x 103 J 3.6 x 10-3 J ANSWER DOWNLOAD EXAMIANS APP
Physics Hertz is the SI unit of Frequency Pressure Power Weight Frequency Pressure Power Weight ANSWER DOWNLOAD EXAMIANS APP
Physics Earliest thermometer was developed by Celsius Fahrenheit Kelvin Galileo Celsius Fahrenheit Kelvin Galileo ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is seen after rain because of hanging molecules of water which act as Prisms Lenses Slabs Mirrors Prisms Lenses Slabs Mirrors ANSWER DOWNLOAD EXAMIANS APP
Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction, convection and radiation Conduction and radiation only Conduction and convection only Convection and radiation only Conduction, convection and radiation Conduction and radiation only Conduction and convection only Convection and radiation only ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train ANSWER DOWNLOAD EXAMIANS APP
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