Physics
Why are we able to hear short wave broadcasts better than long wave broadcasts ?

By convention, short waves are meant for long distances, whereas long waves are reserved for short distances.
Short wave broadcasts are made by nearby radio stations.
Short waves are unaffected by atmospheric disturbances.
Short waves are more energetic than long waves.

ANSWER DOWNLOAD EXAMIANS APP

Physics
When a pail of water is swung in a vertical circle, the water does not fall out at the top of the loop when the speed is

Above a certain minimum value depending on amount of water in the pail
Below a certain minimum value irrespective of amount of water in the pail
Above a certain minimum value irrespective of amount of water in the pail
Below a certain minimum value depending on amount of water in the pail

ANSWER DOWNLOAD EXAMIANS APP

Physics
A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps

The ball will travel towards the center of the circle and fall down
None of these
It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
It will fall down at the same place where the string breaks

ANSWER DOWNLOAD EXAMIANS APP