Physics Alternating current is converted into direct current by a Dynamo Transformer Rectifier Oscillator Dynamo Transformer Rectifier Oscillator ANSWER DOWNLOAD EXAMIANS APP
Physics Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation? Polarization Scattering Interference Diffraction Polarization Scattering Interference Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Rotameter is used to measure Density of fluids Velocity of fluid in pipes Vortex flow Flow of fluids Density of fluids Velocity of fluid in pipes Vortex flow Flow of fluids ANSWER DOWNLOAD EXAMIANS APP
Physics A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will Remains the same Decrease Increase First decrease and then increase Remains the same Decrease Increase First decrease and then increase ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Expands Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Expands Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: The heating effect of current alone Both the heating effect of current and hysteresis loss Intense sunlight at noon Hysteresis loss alone The heating effect of current alone Both the heating effect of current and hysteresis loss Intense sunlight at noon Hysteresis loss alone ANSWER DOWNLOAD EXAMIANS APP
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