Physics
The modulus of rigidity is the ratio of

Shearing stress to shearing strain
Volume stress to volume strain
Tensile stress to tensile strain
Longitudinal stress to longitudinal strain

ANSWER DOWNLOAD EXAMIANS APP

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