Physics Which microscope is often used to view metal surfaces? Electron microscopes Optical microscopes Scanning tunneling microscopes None of these Electron microscopes Optical microscopes Scanning tunneling microscopes None of these ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 4.2 J 80 J 336 J 2268 J 4.2 J 80 J 336 J 2268 J 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 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 They must have the same mass They must have the same density ANSWER DOWNLOAD EXAMIANS APP
Physics If electric resistance is to be decreased, then the number of resistances should be connected in ________ Parallel Mixed arrangement None of these Series Parallel Mixed arrangement None of these Series ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism at the centre of a bar magnet is minimum or maximum zero maximum minimum minimum or maximum zero maximum minimum ANSWER DOWNLOAD EXAMIANS APP
Physics A permanent magnet can affect None of these Electromagnets Both A & B Magnets None of these Electromagnets Both A & B Magnets ANSWER DOWNLOAD EXAMIANS APP
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