Distinguish between a musical sound and a noise.
Sound
Original Khojo Papers practice question — not from a past board paper.
330 m s−1
No citable source has been recorded for this record. Treat it as practice material, not as fact.
v = fλ = 250 × 1.32 = 330 m s−1.
From the same topic and chapter, at a similar level.
Distinguish between a musical sound and a noise.
Sound
The speed of sound in air is 340 m s−1 and in water 1,480 m s−1. A sound of frequency 500 Hz passes from air into water. Find its wavelength in each.
Sound
What is an echo, and state two of its practical uses.
Sound
Define amplitude, frequency, wavelength and time period of a wave.
Sound
Distinguish between infrasonic, audible and ultrasonic sound and give one use of ultrasound.
Sound
What kind of wave is sound and why can it not travel through a vacuum?
Sound