Question

द मिनिमम नंबर ऑफ टाइम्स फॉर सेकंड बॉडी शूटिंग वाइब्रेट टू मेक अ नोडिगल सोंग फॉर मनी​

Answer 1

Explanation:

The number of vibrations per second is known as the frequency, measured in Hertz ... The slowest vibration our human ears can hear is 20 times a second. The individual air molecules do not "travel" with the wave