Find the frequency of a wave of wavelength 2.5m and speed 400 m/s
1 answer:
Answer:
The frequency of wave is 160Hz.
Explanation:
Given that the formula of speed is V = f×λ where V represents speed, f is frequency and λ is wavelength.
So first thing, you have to make frequency the subject by dividing wavelength on both sides :
Next you have to substitute the value of v and f into the formula :
Let λ = 2.5m,
Let v = 400m/s,
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Answer : The frequency decreases by a factor of 2.
Explanation :
Given that the wave travels at a constant speed. The speed of the wave is given as :
Where
υ is the frequency of the wave
and λ is the wavelength of the wave.
In this case, the speed is constant. So, the relation between the frequency and the wavelength is inverse.
If the wavelength increases by a factor of 2, its frequency will decrease by a factor of 2.
Hence, the correct option is (A) " The frequency decreases by a factor of 2 ".
Answer:
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Explanation:
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<em>where P: is the gas pressure, T: is the gas temperature and k: is a constant.</em>
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I hope it helps you!