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From Karnataka Open Educational Resources
→Textbook
#10th karnataka science text book, chapter 14, sound in kannada [http://ktbs.kar.nic.in/New/Textbooks/class-x/kannada/science/class-x-kannada-science-chapter14.pdf click here]
#10th karnataka science text book, chapter 14, sound in kannada [http://ktbs.kar.nic.in/New/Textbooks/class-x/kannada/science/class-x-kannada-science-chapter14.pdf click here]
#Tamil nadu science text book class 9, chapter 5- sound[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-II-SSS-KM-2.pdf click here]
#Tamil nadu science text book class 9, chapter 5- sound[http://www.textbooksonline.tn.nic.in/Books/Std09/Std09-II-SSS-KM-2.pdf click here]
# NCERT science text book class 9, chapter 12-sound [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?iesc1=12-14 click here]
= Additional information =
= Additional information =
