Physics The oil in the wick of an oil lamp rises up due to: Pressure difference Capillary action Gravitational force Low viscosity of oil Pressure difference Capillary action Gravitational force Low viscosity of oil ANSWER DOWNLOAD EXAMIANS APP
Physics What is the principle of a ''Life Jacket"? It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It increases the volume of the person to keep him afloat ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Thermo-electric effect Joule-Kelvin effect Super conductivity Adiabatic demagnetisation Thermo-electric effect Joule-Kelvin effect Super conductivity Adiabatic demagnetisation ANSWER DOWNLOAD EXAMIANS APP
Physics The commonly used coolant in refrigerators is Ammonia Nitrogen Oxygen Freon Ammonia Nitrogen Oxygen Freon ANSWER DOWNLOAD EXAMIANS APP
Physics The large collection of stars, dust and gas held together by gravitational attraction between components is known as Galaxy Cluster Atmosphere Sun Family Galaxy Cluster Atmosphere Sun Family ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 1 cm 6 cm 24 cm 12 cm 1 cm 6 cm 24 cm 12 cm ANSWER DOWNLOAD EXAMIANS APP
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