Atmospheric Pressure - Jamb Physics Past Questions and Answers

Question 16:

• JAMB 1990

What is the length of liquid column in a barometer tube that would support an atmospheric pressure of 102000Nm^-2 if the density of the liquid is 2600kgm^-3? [g = 10ms^-2]

A. 0.75m
B. 0.76m
C. 3.92m
D. 39.23m

Question 17:

• JAMB 1990

Which of the following conditions will make water boil at a temperature of 100^oC when the atmospheric pressure is 750mmHg?

A. Increase the external pressure
B. Reduce the external pressure
C. Heat more rapidly at the same pressure
D. Reduce the external pressure by a quarter

Question 18:

• JAMB 1991

Which of the following is the most suitable for use as an altimeter?

A. A mecury barometer
B. A fortin barometer
C. A mecury manometer
D. An aneroid barometer

Question 19:

• JAMB 1991

Which of the following is the most suitable for use as an altimeter?

A. A mecury barometer
B. A fortin barometer
C. A mecury manometer
D. An aneroid barometer

Question 20:

• JAMB 1991

A pilot records the atmospheric pressure outside its plane as 63cm of Hg while a ground observer records a reading of 75cm of Hg for the atmospheric pressure on the ground. Assuming that the density of the atmosphere is constant, calculate the height of the plane above the ground. (Relative density of Hg = 13.0 and that of air = 0.00013)

A. 1200m
B. 6300m
C. 7500m
D. 13800m