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
Physics Which of the following is an example of simple harmonic motion? Simple pendulum motion Earth spinning on its axis Ball bouncing on floor Motion of a ceiling fan Simple pendulum motion Earth spinning on its axis Ball bouncing on floor Motion of a ceiling fan ANSWER DOWNLOAD EXAMIANS APP
Physics The ''four stroke petrol engine' is based on Carnot-cycle Boyle's-cycle Otto-cycle Diesel-cycle Carnot-cycle Boyle's-cycle Otto-cycle Diesel-cycle ANSWER DOWNLOAD EXAMIANS APP
Physics On the Kelvin scale, the melting point of ice is 273K 0 K 373K 100K 273K 0 K 373K 100K ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N). 20 80 10 40 20 80 10 40 ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Copper Pure silicon Platinum Nichrome Copper Pure silicon Platinum Nichrome ANSWER DOWNLOAD EXAMIANS APP
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