Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Water, iron and air Air, water and iron Iron, air and water Iron, water and air Water, iron and air Air, water and iron Iron, air and water Iron, water and air ANSWER DOWNLOAD EXAMIANS APP
Physics In a bipolar junction transistor The collector has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The base has the least concentration of impurity The emitter has the least concentration of impurity The collector has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The base has the least concentration of impurity The emitter has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a property of heavy water ? Freezing point of heavy water is higher than that of ordinary water Density of heavy water is higher than that of ordinary water It produces corrosion Boiling point of heavy water is lower than that or ordinary water Freezing point of heavy water is higher than that of ordinary water Density of heavy water is higher than that of ordinary water It produces corrosion Boiling point of heavy water is lower than that or ordinary water ANSWER DOWNLOAD EXAMIANS APP
Physics When hot-water is sprinkled on a hotter glass tumbler, it breaks because Glass reacts chemically with water Glass suddenly contracts Water evaporates Glass suddenly expands Glass reacts chemically with water Glass suddenly contracts Water evaporates Glass suddenly expands ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following produces more severe burns ? Boiling water Melting iceberg Steam Hot water Boiling water Melting iceberg Steam Hot water ANSWER DOWNLOAD EXAMIANS APP
Physics A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: Just after it is dropped Just before it touches the ground When it touches the ground When it is just on the half-way Just after it is dropped Just before it touches the ground When it touches the ground When it is just on the half-way ANSWER DOWNLOAD EXAMIANS APP
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