Physics Super conductors are substances that Conduct electricity at low temperature Offer minimum resistance to flow of electric current Offer high resistance to the flow of electric current Conduct electricity at high temperature Conduct electricity at low temperature Offer minimum resistance to flow of electric current Offer high resistance to the flow of electric current Conduct electricity at high temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Which sources produce alternating current (AC)? Batteries Hydro-electric generators Solar power plants All of these Batteries Hydro-electric generators Solar power plants All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Golden view of sea shell is due to Dispersion Polarization Reflection Diffraction Dispersion Polarization Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics The spring balance works on the principle of ________ . Pascal's Law Bernoulli's principle Boyle's Law Hooke's Law Pascal's Law Bernoulli's principle Boyle's Law Hooke's Law ANSWER DOWNLOAD EXAMIANS APP
Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 4 T 8 T 2 T 1 T 4 T 8 T 2 T 1 T ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.21111111111111 0.20902777777778 0.12777777777778 0.12638888888889 0.21111111111111 0.20902777777778 0.12777777777778 0.12638888888889 ANSWER DOWNLOAD EXAMIANS APP
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