Physics In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? White hole Asteroid belt Black hole Ozone hole White hole Asteroid belt Black hole Ozone hole ANSWER DOWNLOAD EXAMIANS APP
Physics When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to : Refraction Reflection Forced vibrations Damped vibrations Refraction Reflection Forced vibrations Damped vibrations ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective ANSWER DOWNLOAD EXAMIANS APP
Physics One thousand microns is equal to 10-9m 10-12m 10-3m 10-6m 10-9m 10-12m 10-3m 10-6m ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of displacement is known as ________ Velocity Distance Speed Acceleration Velocity Distance Speed Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals ANSWER DOWNLOAD EXAMIANS APP
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