Page 19 - form 5 physics chapter 1

influenced by the The alternating loud and soft sounds is caused by
frequency of the audio interference of the sound waves.
signal generator. The loud sound: constructive interference
x = Distance between two The soft sound : destructive interference.
consecutive positions
where loud sound is λ = ax
heard D

Water wave Sound wave Light wave

λ The wavelength of water The wavelength of The wavelength of light

waves is influenced by sound waves is depends on its color.

the frequency of the influenced by the

vibrator frequency of the audio

signal generator.

D Distance between the Distance between the Distance between the

spherical dippers and the loudspeakers and the double-slit plate and the

position marked x is path along which screen

measured interference can be

detected

a Distance between the two Distance between the Distance between the

spherical dippers two loudspeakers two slits on the double

slit plate

x Distance between two Distance between two Distance between two
consecutive positions consecutive bright
consecutive antinode

lines or two consecutive where loud sound is fringes or dark fringes.

node lines heard

High amplitude of water Loud sound Bright fringes

Calm water Soft sound Dark fringes

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