Physics RADAR is used for: locating submerged submarines. receiving a signals in a radio receiver. locating geostationary satellites. detecting and locating the position of objects such as Aeroplanes. locating submerged submarines. receiving a signals in a radio receiver. locating geostationary satellites. detecting and locating the position of objects such as Aeroplanes. ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Increases bandwidth and increases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and decreases noise Increases bandwidth and increases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and decreases noise ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following reflects back more sunlight as compared to other three? Prairie land Land covered with fresh snow Paddy crop land Sand desert Prairie land Land covered with fresh snow Paddy crop land Sand desert ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 2.2 km, 0.20 km 2.8 km, 0.25 km 3.3 km, 0.30 km 1.8 km, 0.15 km 2.2 km, 0.20 km 2.8 km, 0.25 km 3.3 km, 0.30 km 1.8 km, 0.15 km ANSWER DOWNLOAD EXAMIANS APP
Physics A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection Refraction Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train ANSWER DOWNLOAD EXAMIANS APP
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