Physics What is the wavelength of visible spectrum ? 7800 A° – 8000 A° 1300 A°–3000 A° 3900 A° – 7600 A° 8500 A° – 9800 A° 7800 A° – 8000 A° 1300 A°–3000 A° 3900 A° – 7600 A° 8500 A° – 9800 A° ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: More than weight of the wood Zero Less than weight of the wood Equal to the weight of the wood More than weight of the wood Zero Less than weight of the wood Equal to the weight of the wood ANSWER DOWNLOAD EXAMIANS APP
Physics Light houses are places with powerful lights to : Guide and resolve traffic jams in crowded metro-cities during nights Indicate to the incoming warships, the location of a harbour during night Guide and help large crowds at religious gathering during nights Guide and warn the ships coming from different directions in the ocean Guide and resolve traffic jams in crowded metro-cities during nights Indicate to the incoming warships, the location of a harbour during night Guide and help large crowds at religious gathering during nights Guide and warn the ships coming from different directions in the ocean ANSWER DOWNLOAD EXAMIANS APP
Physics Visible light has a higher frequency than All listed here Ultra violet X rays Radio waves All listed here Ultra violet X rays Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same There is no interactive force between the molecules. The speed of all gas molecules is same The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same There is no interactive force between the molecules. The speed of all gas molecules is same ANSWER DOWNLOAD EXAMIANS APP
Physics What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ? All ice will melt No change will happen All water will become ice Only some ice will melt All ice will melt No change will happen All water will become ice Only some ice will melt ANSWER DOWNLOAD EXAMIANS APP
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