Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are more energetic than long waves. Short wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. ANSWER DOWNLOAD EXAMIANS APP
Physics The resistance of a conductor is inversely proportional to its: Area of cross section Resistivity Temperature Length Area of cross section Resistivity Temperature Length ANSWER DOWNLOAD EXAMIANS APP
Physics What is a neuron ? Particle released during radioactivity Basic unit of energy Basic unit of nervous system The anti-particle of neutron Particle released during radioactivity Basic unit of energy Basic unit of nervous system The anti-particle of neutron ANSWER DOWNLOAD EXAMIANS APP
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, convection and radiation Conduction and convection only Conduction and radiation only Convection and radiation only Conduction, convection and radiation Conduction and convection only ANSWER DOWNLOAD EXAMIANS APP
Physics 0°K is equivalent to – 273°C 0°C 273°C 100°C – 273°C 0°C 273°C 100°C ANSWER DOWNLOAD EXAMIANS APP
Physics The reason for a swimming pool to appear less deep than the actual depth is Interference Refraction Light scattering Reflection Interference Refraction Light scattering Reflection ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS