Notes of “Sound” for BSc written by Mr.Nasir Pervaiz Butt. These notes are very helpful to prepare waves and Oscillations for BSc and are in accordance with paper pattern of Punjab University-Lahore, GCU-Lahore, GCU-Faislabad, University of Sargodha-Sargodha and all other universities of Punjab and Pakistan.

Sound is a vibration that propagates as a mechanical wave of pressure and displacement, through some medium (such as air or water). Sometimes sound refers to only those vibrations with frequencies that are within the range of hearing for humans or for a particular animal…

• Beats
• Doppler Effect
• Cases of Doppler Effects