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 wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. Short waves are more energetic than long waves. ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves in air are polarised transverse longitudinal electromagnetic polarised transverse longitudinal electromagnetic ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Ultra high frequency waves on it Microwaves on it Radio waves on it Light waves on it Ultra high frequency waves on it Microwaves on it Radio waves on it Light waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Kirchoff's Voltage Law is known as None of these Both Conservation of Charge Conservation Energy None of these Both Conservation of Charge Conservation Energy ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Contracts It expands or contracts according to its coefficient of expansion It expands or contracts according to its diameter Expands Contracts It expands or contracts according to its coefficient of expansion It expands or contracts according to its diameter Expands ANSWER DOWNLOAD EXAMIANS APP
Physics The SI unit of resistance is: Newton Ohm Joule Coulomb Newton Ohm Joule Coulomb ANSWER DOWNLOAD EXAMIANS APP
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