Distinguish between a musical sound and a noise.
Sound
Original Khojo Papers practice question — not from a past board paper.
The amplitude is the maximum displacement of a particle from its mean position. The frequency is the number of complete vibrations made in one second, measured in hertz. The wavelength is the distance between two consecutive points in the same phase. The time period is the time taken for one complete vibration, and it is the reciprocal of the frequency.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The three are linked by the relation v = fλ.
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
A sound wave has a frequency of 250 Hz and a wavelength of 1.32 m. Calculate its speed.
Sound
What is an echo, and state two of its practical uses.
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