Physics Why does ice covered in sawdust not melt quickly ? Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat Sawdust is good conductor of heat The water is absorbed by sawdust Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat Sawdust is good conductor of heat The water is absorbed by sawdust ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is responsible for the working of Newton's colour disc experiment ? Principle of complementary colour Formation of pure spectra Formation of impure spectra Persistence of vision Principle of complementary colour Formation of pure spectra Formation of impure spectra Persistence of vision ANSWER DOWNLOAD EXAMIANS APP
Physics The term ''equinox' means The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates When the day and night are of equal duration The path which the Earthtakes around the Sun The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates When the day and night are of equal duration The path which the Earthtakes around the Sun ANSWER DOWNLOAD EXAMIANS APP
Physics Pitot tube is used to measure Dynamic pressure Static pressure Stagnation pressure Velocity at stagnation point Dynamic pressure Static pressure Stagnation pressure Velocity at stagnation point ANSWER DOWNLOAD EXAMIANS APP
Physics Where should a boat compass be mounted? Near iron All listed here Away from electrical wiring Near magnet Near iron All listed here Away from electrical wiring Near magnet ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 50 J 30 J 20 J 40 J 50 J 30 J 20 J 40 J ANSWER DOWNLOAD EXAMIANS APP
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