Physics When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to : Refraction Damped vibrations Forced vibrations Reflection Refraction Damped vibrations Forced vibrations Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Stars are held together by Ionic forces Magnetic forces Gravitational forces Electrical forces Ionic forces Magnetic forces Gravitational forces Electrical forces ANSWER DOWNLOAD EXAMIANS APP
Physics A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be < P > P 2P P < P > P 2P P ANSWER DOWNLOAD EXAMIANS APP
Physics When a steel ball is placed on the surface of mercury, it does not sink because The density of mercury is greater than that of steel Of the high viscosity of mercury Mercury is a semisolid Of the surface tension of mercury The density of mercury is greater than that of steel Of the high viscosity of mercury Mercury is a semisolid Of the surface tension of mercury ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 336 J 80 J 2268 J 4.2 J 336 J 80 J 2268 J 4.2 J ANSWER DOWNLOAD EXAMIANS APP
Physics Ozone layer above the surface of Earth provides a shield against X-rays Gamma rays Infra-red rays Ultra-violet rays X-rays Gamma rays Infra-red rays Ultra-violet rays ANSWER DOWNLOAD EXAMIANS APP
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