Physics Suitable impurities are added to a semiconductor depending on its use. This is done in order to increase its electrical conductivity increase its electrical resistivity increase its life enable it to withstand higher voltages increase its electrical conductivity increase its electrical resistivity increase its life enable it to withstand higher voltages ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is used to measure humidity? Hydrometer Anemometer Hygrometer Psycho Meter Hydrometer Anemometer Hygrometer Psycho Meter ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibre works on the principle of refraction interference scattering total internal reflection principle of refraction interference scattering total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics When an atom loses an electron it becomes None of these Negative ion Positive ion Neutron None of these Negative ion Positive ion Neutron ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of paper and a cricket ball are dropped from the same height. Under which of the following conditions do both reach the surface simultaneously ? They must have the same mass They must have the same density They must have the same volume They must be dropped in vacuum They must have the same mass They must have the same density They must have the same volume They must be dropped in vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ? 3 metres 2 metres 4 metres 1 metre 3 metres 2 metres 4 metres 1 metre ANSWER DOWNLOAD EXAMIANS APP
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