Must Do Series on Different type of Measuring Instruments

Dear Readers.

We are providing "Must Do series" for the competitive exam on different topics and subjects. Students can go through these topics , as it will help students to understand the concepts easily and remember it for longer period of time.  

1. Aerometer :
Instrument for measuring weight and density of air and gases.

2.Altimeter :
Instrument used in aircraft to measure altitude.