Physics When a ring of metal is heated what happens to its hole ? Contracts It expands or contracts according to its coefficient of expansion Expands It expands or contracts according to its diameter Contracts It expands or contracts according to its coefficient of expansion Expands It expands or contracts according to its diameter ANSWER DOWNLOAD EXAMIANS APP
Physics Heat transfer horizontally within the atmosphere is called Absorption Advection Convection Conduction Absorption Advection Convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Physics For photoelectric effect to take place, the metal used as the cathode should have ________ Low work function High melting point Low resistance Low melting point Low work function High melting point Low resistance Low melting point ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective mirror combinations of lenses None of these lens mirror combinations of lenses None of these lens ANSWER DOWNLOAD EXAMIANS APP
Physics Air pressure is measured in which of the following units? Steridian Kg/mts Newton Pascal Steridian Kg/mts Newton Pascal ANSWER DOWNLOAD EXAMIANS APP
Physics Kirchoff's Voltage Law is known as Both None of these Conservation of Charge Conservation Energy Both None of these Conservation of Charge Conservation Energy ANSWER DOWNLOAD EXAMIANS APP
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