Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is Of higher pitch when train departs Of higher intensity when train arrives The same in both cases in all respects Of higher pitch when train arrives Of higher pitch when train departs Of higher intensity when train arrives The same in both cases in all respects Of higher pitch when train arrives ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning heats the surrounding air to 3000 deg Cent 300 deg Cent 300000 deg Cent 30000 deg Cent 3000 deg Cent 300 deg Cent 300000 deg Cent 30000 deg Cent ANSWER DOWNLOAD EXAMIANS APP
Physics Increased wind speed is accompanied by a reduced air ________ Pressure Humidity Aridity Density Pressure Humidity Aridity Density ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of displacement is known as ________ Distance Velocity Speed Acceleration Distance Velocity Speed Acceleration 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
Physics Man perceives sound vibrations in the frequency ranges of 0 – 5 Hz 6 – 10 Hz 11 – 20 Hz 20 – 20000 Hz 0 – 5 Hz 6 – 10 Hz 11 – 20 Hz 20 – 20000 Hz ANSWER DOWNLOAD EXAMIANS APP
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