Physics Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ? Venus Earth Moon Saturn Venus Earth Moon Saturn ANSWER DOWNLOAD EXAMIANS APP
Physics Period of oscillation of 3 cm microwaves in seconds is 1 × 1010 1 × 10–10 0.01 0.001 1 × 1010 1 × 10–10 0.01 0.001 ANSWER DOWNLOAD EXAMIANS APP
Physics What device converts light energy to electrical energy? Photovoltaic cell Heliostats Thermocouple Photodiode Photovoltaic cell Heliostats Thermocouple Photodiode ANSWER DOWNLOAD EXAMIANS APP
Physics Among the following materials sound travels fastest in Water Steel Vacuum Air Water Steel Vacuum Air ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Superconductors Semi conductors Dielectrics Perfect conductors Superconductors Semi conductors Dielectrics Perfect conductors ANSWER DOWNLOAD EXAMIANS APP
Physics A small drop of oil spreads over water because : Water has a higher viscosity Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity Water has a higher viscosity Oil has a higher surface tension Water has a higher surface tension Oil has a higher viscosity ANSWER DOWNLOAD EXAMIANS APP
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