Physics Sound becomes hazardous noise pollution at decibels? Above 80 db Above 30 db Above 50 db Above 120 db Above 80 db Above 30 db Above 50 db Above 120 db ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of falling rain drops attains a terminal value because of Surface tension Air current Viscous force exerted by air Upward thrust due to air Surface tension Air current Viscous force exerted by air Upward thrust due to air ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to study the behaviour of a vibrating string is : Barometer Sonometer Hygrometer Hydrometer Barometer Sonometer Hygrometer Hydrometer ANSWER DOWNLOAD EXAMIANS APP
Physics Two rods, one of copper and other of steel, experience the same upthrust when placed in water.Thus, both have Equal mass Equal density Equal volume Equal weight Equal mass Equal density Equal volume Equal weight ANSWER DOWNLOAD EXAMIANS APP
Physics RADAR is used for: locating submerged submarines. detecting and locating the position of objects such as Aeroplanes. receiving a signals in a radio receiver. locating geostationary satellites. locating submerged submarines. detecting and locating the position of objects such as Aeroplanes. receiving a signals in a radio receiver. locating geostationary satellites. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a device designed to protect electrical devices from voltage spikes? Current unloader Surge protector Voltage unloader Heat protector Current unloader Surge protector Voltage unloader Heat protector ANSWER DOWNLOAD EXAMIANS APP
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