Physics The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by Johannes Kepler Martin Luther Copernicus Galileo Johannes Kepler Martin Luther Copernicus Galileo ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It reflects heat It is a good conductor of heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It reflects heat It is a good conductor of heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Becomes 1/4 th Becomes half Become 4 times Is also doubled Becomes 1/4 th Becomes half Become 4 times Is also doubled ANSWER DOWNLOAD EXAMIANS APP
Physics According to special theory of relativity the mass of a particle Increases with increase in velocity with respect to an observer. Decreases with decrease in velocity. Is independent of its velocity. Decreases with increase in velocity. Increases with increase in velocity with respect to an observer. Decreases with decrease in velocity. Is independent of its velocity. Decreases with increase in velocity. ANSWER DOWNLOAD EXAMIANS APP
Physics In superconductors, the energy gap is due to Electron-electron interaction Electron-phonon interaction Electron-photon intercation Phonon-phonon interaction Electron-electron interaction Electron-phonon interaction Electron-photon intercation Phonon-phonon interaction ANSWER DOWNLOAD EXAMIANS APP
Physics Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be P 2p/ 3 3P P/3 P 2p/ 3 3P P/3 ANSWER DOWNLOAD EXAMIANS APP
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