Physics Superconductors are those elements Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Whose resistance falls almost to zero at very low temperatures Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Whose resistance falls almost to zero at very low temperatures ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of reaction produces the most harmful radiation ? Chemical reaction Fusion reaction Fission reaction Photo-Chemical reaction Chemical reaction Fusion reaction Fission reaction Photo-Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert Mechanical energy into Electrical energy C. to A.C. Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. Mechanical energy into Electrical energy C. to A.C. Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. ANSWER DOWNLOAD EXAMIANS APP
Physics Solar cells work on the principle of Photoconductive effect Photosynthesis Photoelectric effect Photovoltaic effect Photoconductive effect Photosynthesis Photoelectric effect Photovoltaic effect ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is seen after rain because of hanging molecules of water which act as Mirrors Lenses Slabs Prisms Mirrors Lenses Slabs Prisms ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following supports particle nature of photons ? Diffraction Photoelectric effect Interference Polarization Diffraction Photoelectric effect Interference Polarization ANSWER DOWNLOAD EXAMIANS APP
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