Question text
34 A loudspeaker and a microphone are placed in front of a wall. wall loudspeaker microphone The loudspeaker makes a sound which is detected by the microphone. The microphone is connected to an oscilloscope which is set so that each division on the screen represents 0.01s. The microphone detects the original sound and the echo. one division sound echo display on oscilloscope The speed of sound in air is 300m/s. What is the distance between the loudspeaker and the wall? A 6.0m B 12m C 24m D 48m
34 A loudspeaker and a microphone are placed in front of a wall.
wall
loudspeaker
microphone
The loudspeaker makes a sound which is detected by the microphone.
The microphone is connected to an oscilloscope which is set so that each division on the screen
represents 0.01s. The microphone detects the original sound and the echo.
one division
sound
echo
display on oscilloscope
The speed of sound in air is 300m/s.
What is the distance between the loudspeaker and the wall?
A 6.0m B 12m C 24m D 48m
Select your answer: