Questions বায়ু প্রবাহের গতিবেগ নির্ণয় করা হয় কোন যন্ত্রের সাহায্যে।
Answer: অ্যানিমোমিটার
Extra Information: Air velocity and flow rate can be measured using various instruments, including:
*Anemometer: A device equipped with a small propeller to measure air velocity.
*Balometer: An instrument that utilizes constant airflow to determine the air flow rate.
Maddhamik Geography 2023
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