Physics The threshold frequency is the frequency below which : Photo current is constant Photo current increases with voltage Photo electric emission is not possible Photo current decreases with voltage Photo current is constant Photo current increases with voltage Photo electric emission is not possible Photo current decreases with voltage ANSWER DOWNLOAD EXAMIANS APP
Physics Clouds float in the atmosphere because of their Low density Low temperature Low viscosity Low pressure Low density Low temperature Low viscosity Low pressure ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibre works on the interference scattering total internal reflection principle of refraction interference scattering total internal reflection principle of refraction ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It has only one electron Its energy levels are very close to each other It is highly electropositive It is very small in size It has only one electron Its energy levels are very close to each other It is highly electropositive It is very small in size ANSWER DOWNLOAD EXAMIANS APP
Physics Earliest thermometer was developed by Galileo Kelvin Celsius Fahrenheit Galileo Kelvin Celsius Fahrenheit ANSWER DOWNLOAD EXAMIANS APP
Physics Second and third class levers are differentiated by The type of fulcrum present The presence of multiple loads The location of the load The location of the fulcrum The type of fulcrum present The presence of multiple loads The location of the load The location of the fulcrum ANSWER DOWNLOAD EXAMIANS APP
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