Question text
36 The diagram shows the trace on an oscilloscope screen. The first peak occurs when a pulse of sound is emitted. The second, smaller peak is the echo received from a wall. 3.0 cm 8.0 cm The trace moves across the screen in a time of 24ms. How long does it take for the sound to travel to the wall? A 4.5ms B 9.0ms C 12ms D 32ms
36 The diagram shows the trace on an oscilloscope screen. The first peak occurs when a pulse of
sound is emitted. The second, smaller peak is the echo received from a wall.
3.0 cm
8.0 cm
The trace moves across the screen in a time of 24ms.
How long does it take for the sound to travel to the wall?
A 4.5ms B 9.0ms C 12ms D 32ms
Select your answer: