Atmospheric Pressure - Jamb Physics Past Questions and Answers

Question 21:

• JAMB 1994

In the fig above if the atmospheric pressure is 760mm, the pressure of the chamber G is

A. 660mm
B. 690mm
C. 830mm
D. 860mm

Question 22:

• JAMB 1999

In the J-tube above, Y and X are on the same horizontal level and 30cm³ of air is trapped above Y when the atmospheric pressure is 75cm Hg, calculate the volume of air trapped above Y when 15cm Hg is now poured into the limb above X

A. 15 cm³
B. 25 cm³
C. 35 cm³
D. 45 cm³

Question 23:

• JAMB 2001

The height at which the atmosphere ceases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is

A. 380mmHg
B. 570mmHg
C. 190mmHg
D. 480mmHg

Question 24:

• JAMB 2001

The height at which the atmosphere ceases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is

A. 380mmHg
B. 570mmHg
C. 190mmHg
D. 480mmHg

Question 25:

• JAMB 2007

A reservoir 500 m deep is filled with a fluid of density 850 kgm^-3. If the atmospheric pressure is 1.05 x 10⁵ Nm^-2, the pressure at the bottom of the reservoir is.
[g = 10ms^-2]

A. 4.72 x 10⁶ Nm^-2
B. 4.36 x 10⁶ Nm^-2
C. 4.28 x 10⁶ Nm^-2
D. 4.25 x 10⁶ Nm^-2