Physics · Wave Motion and Sound
ध्वनि तरंगें किसमें से होकर यात्रा नहीं कर सकती हैं?
- 1ग्रेनाइट
- 2हीलियम गैस
- 3आसुत जल
- 4निर्वात (वैक्यूम)✓
सही उत्तर देखें
निर्वात (वैक्यूम)
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