Physics Railway tracks are banked on curves necessary centrifugal force may be obtained from the horizontal component weight of the train necessary centripetal force may be obtained from the horizontal component of the weight of the train the train may not fly off in the opposite direction to avoid frictional force between the tracks and wheels necessary centrifugal force may be obtained from the horizontal component weight of the train necessary centripetal force may be obtained from the horizontal component of the weight of the train the train may not fly off in the opposite direction to avoid frictional force between the tracks and wheels ANSWER DOWNLOAD EXAMIANS APP
Physics Why does the sea appear blue in colour? Refraction of the sun light Scattering of the sunlight by water molecules Interference of the sun light from water surface Reflection of the sun light from water surface Refraction of the sun light Scattering of the sunlight by water molecules Interference of the sun light from water surface Reflection of the sun light from water surface ANSWER DOWNLOAD EXAMIANS APP
Physics The quality or tone of a musical sound produced by a stringed instrument depends on Amplitude of vibration Length of the strings in the instrument Wave form of the sound Frequency of vibration Amplitude of vibration Length of the strings in the instrument Wave form of the sound Frequency of vibration ANSWER DOWNLOAD EXAMIANS APP
Physics The rice is cooked more quickly in a pressure cooker because It is covered. Less quantity of water is used. None of these Water boils at a higher temperature under pressure. It is covered. Less quantity of water is used. None of these Water boils at a higher temperature under pressure. ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum distance (in metres) required to hear an echo? 10 17 21 13 10 17 21 13 ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument used to measure the speed of the wind is Altimeter Chronometer Dosimeter Anemometer Altimeter Chronometer Dosimeter Anemometer ANSWER DOWNLOAD EXAMIANS APP
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