1 point
2 Sound waves need medium
to travel. ਧੁਨੀ ਤਰੰਗਾਂ ਨੂੰ ਸੰਚਾਰ ਲਈ
ਮਾਧਿਅਮ ਦੀ ਲੋੜ ਹੁੰਦੀ ਹੈ।
O True/ਸਹੀ
O False/ਗਲਤ
0 Option 3
Answers
Answered by
1
Answer:
Mam kindly post your ques in English
Answered by
2
Answer:
True as we now sound not travel in vaccum It need medium
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