Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Demagnetization due to heating Effect of other magnets Earth's magnetic field Self-demagnetization Demagnetization due to heating Effect of other magnets Earth's magnetic field Self-demagnetization ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure of a fluid varies with depth h as P = PQ+pgh, where p is the fluid density. This expression is associated with Bernoulli's principle Archimedes' principle Pascal's law Newton's law Bernoulli's principle Archimedes' principle Pascal's law Newton's law ANSWER DOWNLOAD EXAMIANS APP
Physics Anemometer is used to measure Wind speed and time Pressure gradient Wind direction Wind velocity Wind speed and time Pressure gradient Wind direction Wind velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are methods of heat transfer? Revolution Thermal Expansion Convection Evaporation Revolution Thermal Expansion Convection Evaporation ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are those elements Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose resistance falls almost to zero at very low temperatures Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose resistance falls almost to zero at very low temperatures ANSWER DOWNLOAD EXAMIANS APP
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