Physics Period of oscillation of 3 cm microwaves in seconds is 1 × 1010 0.001 0.01 1 × 10–10 1 × 1010 0.001 0.01 1 × 10–10 ANSWER DOWNLOAD EXAMIANS APP
Physics In superconductors, the energy gap is due to Electron-photon intercation Electron-electron interaction Phonon-phonon interaction Electron-phonon interaction Electron-photon intercation Electron-electron interaction Phonon-phonon interaction Electron-phonon interaction ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : None of these 36,000 km 30,000 km 42,000 km None of these 36,000 km 30,000 km 42,000 km ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Joule-Kelvin effect Adiabatic demagnetisation Thermo-electric effect Super conductivity Joule-Kelvin effect Adiabatic demagnetisation Thermo-electric effect Super conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics The period of revolution of a geostationary satellite is Changing continuously 24 hours 30 days 365 days Changing continuously 24 hours 30 days 365 days ANSWER DOWNLOAD EXAMIANS APP
Physics stars which appear single to the naked eye but are double when seen through a telescope are quasars asteroids binaries novas and supernovas quasars asteroids binaries novas and supernovas ANSWER DOWNLOAD EXAMIANS APP
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