Q:
      
      
         
            
What measures Air pressure?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) Barometer         
         
Explanation: Air Pressure can be defined as the pressure of air in the earth's atmosphere. It reaches a maximum of about 100,000 Pa near sea level and decreases as altitude increases.
The barometer is an instrument which is used for measuring Air pressure.
 
Physics instruments and their uses:
 
Barkometer  - - - Tanning liquors used in tanning leather
Bolometer  - - - Electromagnetic radiation
Spectrometer - - -  Properties of light.
       
      
      
      
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