Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. ANSWER DOWNLOAD EXAMIANS APP
Physics The period of revolution of a geostationary satellite is 30 days 365 days Changing continuously 24 hours 30 days 365 days Changing continuously 24 hours ANSWER DOWNLOAD EXAMIANS APP
Physics What principle/law explains the working of the hydraulic brakes in automobiles ? Pascal's law Posieulle's principle Bernoulli's law Archimedes' principle Pascal's law Posieulle's principle Bernoulli's law Archimedes' principle ANSWER DOWNLOAD EXAMIANS APP
Physics The damage of the human body due to radiation (X-rays or grays etc,) is measured in : Curie Rems Roentgen Rads Curie Rems Roentgen Rads ANSWER DOWNLOAD EXAMIANS APP
Physics Sound cannot pass through Water Vacuum Steel Air Water Vacuum Steel Air ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of direct current is ________ 60 HZ Zero 50 HZ 100 HZ 60 HZ Zero 50 HZ 100 HZ ANSWER DOWNLOAD EXAMIANS APP
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