Lakhmir singh solutions
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Sound | Exercise

Question 47

a) Name four ways in which sound can be produced.

b) Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.

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a) Following are the ways in which sound can be produced:

i) by vibrating the strings

ii) by vibrating membranes

iii) by vibrating the plates

b) Speed of sound wave = (frequency)(wavelength)

Frequency, f = 2 kHz

Wavelength, λ = 65 cm = 0.65 m

Therefore, speed = 1300 m/s

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Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 47

a) Name four ways in which sound can be produced.

b) Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

a) Following are the ways in which sound can be produced:

i) by vibrating the strings

ii) by vibrating membranes

iii) by vibrating the plates

b) Speed of sound wave = (frequency)(wavelength)

Frequency, f = 2 kHz

Wavelength, λ = 65 cm = 0.65 m

Therefore, speed = 1300 m/s

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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