question_answer

  (a) What is the audible range of the average human ear? (b) How are the wavelength and frequency of a sound wave related to its speed? (c) What is the frequency of a sound wave whose time period is 0.05 s?

Answer:

   (a) Audible range of the human ear = 20 Hz to 20 kHz. (b) Relation between wavelength, frequency and speed of sound wave is where  is the wavelength,  is the frequency and v is the speed of sound wave.  (c) Time period of the wave =0.05 s Frequency of the wave