Hawa ki raftar ko naapne ke liye kaunsa instrument istimaal hota hai?

Hawa ki raftar ko naapne ke liye kaunsa instrument istimaal hota hai?

Hawa ki raftar ko naapne ke liye kaunsa instrument istimaal hota hai?

• Anemometer
• Barometer
• Hydrometer

ANSWER 

     (1)

• Anemometer