Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction and radiation only Convection and radiation only Conduction and convection only Conduction, convection and radiation Conduction and radiation only Convection and radiation only Conduction and convection only Conduction, convection and radiation ANSWER DOWNLOAD EXAMIANS APP
Physics The density of the liquid when heated Decreases Increases Does not change May increase of decrease depending on pressure Decreases Increases Does not change May increase of decrease depending on pressure ANSWER DOWNLOAD EXAMIANS APP
Physics Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds. 40 12500 6250 20 40 12500 6250 20 ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be A horizontal straight line A vertical straight line A parabola A circle A horizontal straight line A vertical straight line A parabola A circle ANSWER DOWNLOAD EXAMIANS APP
Physics A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because Stone is heavier than parachute None of these A parachute has a larger surface area and air resistance is more Special mechanisms are present in parachute Stone is heavier than parachute None of these A parachute has a larger surface area and air resistance is more Special mechanisms are present in parachute ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that usually are good conductors of electricity? Lead Nickel Aluminium Wood Lead Nickel Aluminium Wood ANSWER DOWNLOAD EXAMIANS APP
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