Physics If ice floating on water in a vessel melts, the water level in the vessel ________ . Does not change Decreases First increases before decreasing Increases Does not change Decreases First increases before decreasing Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Decibel is the unit used for Radio wave frequency Intensity of sound Speed of light Intensity of heat Radio wave frequency Intensity of sound Speed of light Intensity of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to measure the force and velocity of the wind is Altimeter Audiometer Anemometer Ammeter Altimeter Audiometer Anemometer Ammeter ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Johnson Effect Photoelectric Effect Piezo - electric Effect Edison Effect Johnson Effect Photoelectric Effect Piezo - electric Effect Edison Effect ANSWER DOWNLOAD EXAMIANS APP
Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? No radiation of heat takes place Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor Air layer between two shirts behaves like insulating media No radiation of heat takes place Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor Air layer between two shirts behaves like insulating media ANSWER DOWNLOAD EXAMIANS APP
Physics Heat energy is transferred by conduction whenever molecules Particles replaces there places Collide each other Means of photons All of these Particles replaces there places Collide each other Means of photons All of these ANSWER DOWNLOAD EXAMIANS APP
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