Click the correct answer (True or False).
Click the correct answer.
Which of the following musical instrument is a reed instrument?
Guitar
Flute
Mouth organ
Tabla
Which of the following statements is not true for a sound wave?
It requires a medium to propagate.
The wave particles vibrate in the direction of propagation of the wave.
The wave particles vibrate perpendicular to the direction of propagation of the wave.
It comprises both compressions and rarefactions.
What is the approximate speed of sound in air at 0 °C?
360 m s-1
344 m s-1
331 m s-1
390 m s-1
What is the minimum distance required for an echo to occur?
About 17 m
About 15 m
About 14 m
About 13 m
