Physics Which sources produce alternating current (AC)? Hydro-electric generators Solar power plants All of these Batteries Hydro-electric generators Solar power plants All of these Batteries ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Contracts Expands It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Contracts Expands It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Longitudinal Transverse Waves are not produced Both longitudinal and transverse Longitudinal Transverse Waves are not produced Both longitudinal and transverse ANSWER DOWNLOAD EXAMIANS APP
Physics Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in 4.2 seconds 42 seconds 42 years 4.2 years 4.2 seconds 42 seconds 42 years 4.2 years ANSWER DOWNLOAD EXAMIANS APP
Physics The wave like properties of electrons are useful in Weather reports All of these Magnifying objects Lasers Weather reports All of these Magnifying objects Lasers ANSWER DOWNLOAD EXAMIANS APP
Physics Beta rays emitted by a radioactive material are The electrons orbiting around the nucleus Electromagnetic radiations Charged particles emitted by nucleus Neutral particles The electrons orbiting around the nucleus Electromagnetic radiations Charged particles emitted by nucleus Neutral particles ANSWER DOWNLOAD EXAMIANS APP
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