Physics The propagation of sound waves in a gas involves Isothermal compression and rarefaction Adiabatic compression and rarefaction Isochoric compression and rarefaction Isobaric compression and rarefaction Isothermal compression and rarefaction Adiabatic compression and rarefaction Isochoric compression and rarefaction Isobaric compression and rarefaction ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that 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 The train may not fall down inwards No frictional force may be produced between the tracks and the wheels of the train 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 The train may not fall down inwards No frictional force may be produced between the tracks and the wheels of the train ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of paper and a cricket ball are dropped from the same height. Under which of the following conditions do both reach the surface simultaneously ? They must have the same volume They must have the same mass They must have the same density They must be dropped in vacuum They must have the same volume They must have the same mass They must have the same density They must be dropped in vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Less than weight of the wood Zero Equal to the weight of the wood More than weight of the wood Less than weight of the wood Zero Equal to the weight of the wood More than weight of the wood ANSWER DOWNLOAD EXAMIANS APP
Physics Vehicles use ________ to see the objects coming from behind. Concave mirror Convex lens Concave lens Convex mirror Concave mirror Convex lens Concave lens Convex mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these branches of Physics deal with heat and temperature and their relation to energy and work? Atomic Physics Mechanics Thermodynamics Geophysics Atomic Physics Mechanics Thermodynamics Geophysics ANSWER DOWNLOAD EXAMIANS APP
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