Geography, asked by monaabdul415, 11 hours ago

চিত্রসহ দিন-রাত্রির দৈর্ঘ্যের হাসবৃদ্ধির সংঘটন বর্ণনা করে
২.​

Answers

Answered by arulanuabi
3

Explanation:

The first overtone of a closed pipe has the same frequency as the first overtone of an open organ pipe

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