Physics On which of the following techniques photostate machine works ? Electromagnetic Image— Making Electrostatic Image—Making Magnetic Image—Making Thermal Image—Making Electromagnetic Image— Making Electrostatic Image—Making Magnetic Image—Making Thermal Image—Making ANSWER DOWNLOAD EXAMIANS APP
Physics Out of the following, which is not emitted by radioactive substance? Electromagnetic radiations Neutrons Electrons Alpha particles Electromagnetic radiations Neutrons Electrons Alpha particles ANSWER DOWNLOAD EXAMIANS APP
Physics The energy that generates wind comes from what source? Anemometers Solar radiation Ocean currents None of these Anemometers Solar radiation Ocean currents None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Semi conductors Superconductors Perfect conductors Dielectrics Semi conductors Superconductors Perfect conductors Dielectrics ANSWER DOWNLOAD EXAMIANS APP
Physics The damage of the human body due to radiation (X-rays or grays etc,) is measured in : Curie Rads Roentgen Rems Curie Rads Roentgen Rems ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant Avoid the heating of tracks to high temperature Control the speed of train Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant Avoid the heating of tracks to high temperature Control the speed of train ANSWER DOWNLOAD EXAMIANS APP
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