Correct option is A
The correct answer is (a) a low pitch
Explanation: (Information about the correct answer):
• Pitch is the brain's perception of the frequency of a sound wave.
• Frequency is defined as the number of vibrations or cycles per unit of time (measured in Hertz, Hz).
• There is a direct relationship between frequency and pitch: a low frequency results in a low pitch (bass sound).
• For example, the sound of a drum has a low frequency and thus a low pitch.
• Conversely, a high-frequency sound results in a high pitch (shrill sound).
Information Booster: (additional info around the correct answer):
• The human ear can typically hear frequencies between 20 Hz and 20,000 Hz.
• Wavelength is inversely proportional to frequency (v = fλ), so a low frequency wave has a long wavelength.
Additional Knowledge: (Information about incorrect options):
a high pitch (Option b)
• This is characteristic of high-frequency sound waves, like a whistle.
a short wavelength (Option c)
• Short wavelengths are associated with high-frequency sound waves.
a low amplitude (Option d)
• Amplitude determines the loudness or volume of the sound, not the pitch.
So the correct answer is (a)
