Physics Stars are held together by Electrical forces Gravitational forces Magnetic forces Ionic forces Electrical forces Gravitational forces Magnetic forces Ionic forces ANSWER DOWNLOAD EXAMIANS APP
Physics Oil rises up the wick in a lamp because Of the diffusion of oil through the wick Of the surface tension phenomenon Oil is very light Of the capillary action phenomenon Of the diffusion of oil through the wick Of the surface tension phenomenon Oil is very light Of the capillary action phenomenon ANSWER DOWNLOAD EXAMIANS APP
Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Work with reduced efficiency Work with increased efficiency Not work at all Work as efficiently as on the earth Work with reduced efficiency Work with increased efficiency Not work at all Work as efficiently as on the earth ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 36,000 km None of these 42,000 km 30,000 km 36,000 km None of these 42,000 km 30,000 km ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Thermo-electric effect Super conductivity Joule-Kelvin effect Adiabatic demagnetisation Thermo-electric effect Super conductivity Joule-Kelvin effect Adiabatic demagnetisation ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has high temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has high temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
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