एक ध्वनि तरंग 339 m/s की चाल से चलती है। यदि इसकी तरंगदैर्घ्य 3 cm हो, तो तरंग की आवृत्ति कितनी होगी? क्या ये श्रव्य होंगी?
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Answer:
english please
Explanation:
mark brainliest if you dont know hindi
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