Physics A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? Sphere Circular plate Cube All will cool at the same rate Sphere Circular plate Cube All will cool at the same rate ANSWER DOWNLOAD EXAMIANS APP
Physics Fibre optics work on the principle of Optical rotation Total internal absorption Total internal reflection Scattering of light Optical rotation Total internal absorption Total internal reflection Scattering of light ANSWER DOWNLOAD EXAMIANS APP
Physics When an electric bulb breaks, there is an explosive sound. That is due to None of these The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly The air outside rushing in to fill the vacuum inside the bulb None of these The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly The air outside rushing in to fill the vacuum inside the bulb ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Choke' used with a tube light is basically A capacitor A transformer An inductor A resistor A capacitor A transformer An inductor A resistor ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following features of a tunnel diode is its drawback Very low power consumptions Very wide temperature range of operations Extremely high frequency response Instability due to negative resistance Very low power consumptions Very wide temperature range of operations Extremely high frequency response Instability due to negative resistance ANSWER DOWNLOAD EXAMIANS APP
Physics Curie point is the temperature at which A metal loses magnetic properties. A metal loses conductivity Transmutation of metal occurs. Matter becomes radioactive A metal loses magnetic properties. A metal loses conductivity Transmutation of metal occurs. Matter becomes radioactive ANSWER DOWNLOAD EXAMIANS APP
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