Question

If the speed of a wave is 380m/s and it's frequency is 1900Hz, then the wavelength of the wave will be:​

Answer 1

Answer:

• Wavelength of the wave = 0.2 metres

Explanation:

Given:

• Speed of wave, v = 380 m/s
• Frequency of wave, f = 1900 Hz

To find:

• Wavelength of the wave, λ =?

Formula required:

• Relation between Wavelength, frequency and speed of a wave

        λ = v / f

[ Where λ is wavelength, v is speed of wave, f is frequency of wave ]

Solution:

Using formula

→ λ = v / f

→ λ = ( 380 ) / ( 1900 )

→ λ = 38/190

→ λ = 0.2  m

Therefore,

• Wavelength of the given wave is 0.2 metres.

Answer 2

Answer:

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