Sound #0

Sound #0
0

Sound

Chapter 12 of the Science textbook for class 09



https://files.metastudio.org/media/8/3/f/bf43c59803f18b109739da78639ffc112d2c0d20897d8c444b36330d4fe20

License: CC-BY-SA 4.0 unported
Source: NCERT
Collection: 5c79620216b51cc44f3ac0c3, 5c79620616b51cc44f3ac0db