If you double the frequency of sound, you also double which of the following? A) All of these.B) None of these.C) wavelength.D) amplitude.E) speed.
To answer this question, let's break down the options:
A) "All of these" would mean that if you double the frequency of sound, all of the listed options (wavelength, amplitude, and speed) would also double.
B) "None of these" would imply that if you double the frequency of sound, none of the listed options would double.
C) "Wavelength" refers to the distance between consecutive peaks or troughs of a sound wave.
D) "Amplitude" represents the maximum displacement of particles in a medium from their resting position, which determines the volume or intensity of sound.
E) "Speed" refers to the rate at which sound waves travel through a medium.
To determine the correct answer, we need to consider the relationship between frequency, wavelength, amplitude, and speed of sound.
The formula that relates frequency, wavelength, and speed of sound is:
Speed of sound (v) = Frequency (f) × Wavelength (λ)
From this equation, we can see that wavelength is inversely proportional to frequency. In other words, if the frequency doubles, the wavelength is halved, and vice versa. Therefore, we can eliminate options A, B, and E because they include wavelength, which does not double when the frequency is doubled.
Amplitude, on the other hand, represents the energy or loudness of a sound but is not directly related to frequency. Therefore, we can also eliminate option D.
The correct answer is option B) None of these. When you double the frequency of sound, none of the listed options (wavelength, amplitude, and speed) double as a direct consequence of frequency doubling.