Physics The reflector of a search light is a : Convex mirror Concave mirror Cylindrical mirror Plane mirror Convex mirror Concave mirror Cylindrical mirror Plane mirror ANSWER DOWNLOAD EXAMIANS APP
Physics The spring balance works on the principle of ________ . Hooke's Law Boyle's Law Pascal's Law Bernoulli's principle Hooke's Law Boyle's Law Pascal's Law Bernoulli's principle ANSWER DOWNLOAD EXAMIANS APP
Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction and convection only Conduction and radiation only Convection and radiation only Conduction, convection and radiation Conduction and convection only Conduction and radiation only Convection and radiation only Conduction, convection and radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Which sources produce alternating current (AC)? Batteries Solar power plants Hydro-electric generators All of these Batteries Solar power plants Hydro-electric generators All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? 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 more energetic than long waves. Short waves are unaffected by atmospheric disturbances. 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 more energetic than long waves. Short waves are unaffected by atmospheric disturbances. ANSWER DOWNLOAD EXAMIANS APP
Physics A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an Audible wave Ultrasonic wave Microwave Infrasonic wave Audible wave Ultrasonic wave Microwave Infrasonic wave ANSWER DOWNLOAD EXAMIANS APP
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