Physics What is the minimum distance (in metres) required to hear an echo? 10 13 21 17 10 13 21 17 ANSWER DOWNLOAD EXAMIANS APP
Physics The commonly used coolant in refrigerators is Ammonia Oxygen Freon Nitrogen Ammonia Oxygen Freon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Physics When an electric bulb breaks, there is an explosive sound. That is due to The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly None of these The air outside rushing in to fill the vacuum inside the bulb The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly None of these The air outside rushing in to fill the vacuum inside the bulb ANSWER DOWNLOAD EXAMIANS APP
Physics The motion of a freely falling body is an example of ________ accelerated motion. Specially Uniformly Uniquely Non-uniformly Specially Uniformly Uniquely Non-uniformly ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It is very small in size Its energy levels are very close to each other It is highly electropositive It has only one electron It is very small in size Its energy levels are very close to each other It is highly electropositive It has only one electron ANSWER DOWNLOAD EXAMIANS APP
Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Doppler effect Resonance Beats Echo Doppler effect Resonance Beats Echo ANSWER DOWNLOAD EXAMIANS APP
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