Physics The threshold frequency is the frequency below which : Photo electric emission is not possible Photo current increases with voltage Photo current decreases with voltage Photo current is constant Photo electric emission is not possible Photo current increases with voltage Photo current decreases with voltage Photo current is constant ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to change the speed of an electric fan is Switch Rectifier Amplifier Regulator Switch Rectifier Amplifier Regulator ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Pascal's law Conservation of mass principle Archimedes principle Boyle's law Pascal's law Conservation of mass principle Archimedes principle Boyle's law ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole Increases Decreases No change First increases and than decreases Increases Decreases No change First increases and than decreases ANSWER DOWNLOAD EXAMIANS APP
Physics A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ? Parabolic Great circle Circle Hyper–parabolic Parabolic Great circle Circle Hyper–parabolic ANSWER DOWNLOAD EXAMIANS APP
Physics What is the phenomenon which established the transverse nature of light ? Interference Reflection Polarisation Diffraction Interference Reflection Polarisation Diffraction ANSWER DOWNLOAD EXAMIANS APP
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