Q2
Consider the following statements.
1. SI unit of atmospheric pressure is Nm−2 or pascal and CGS unit is dyne/cm2.
2. The barometer is a device by which the atmospheric pressure is measured.
3. The standard atmospheric pressure is the pressure required of 76 cm of Hg column or 760 mm of Hg column, which is equivalent to 1 atm.
Which of the statements given above is/are correct?