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JAMB Physics 1994 Question 17

Question 17

Pressure

Which of these statements are TRUE of pressure in liquids? I. Pressure acts equally in all directions II. Pressure decreases with depth III. Pressure at the same level of a liquid is the same IV. Pressure is dependent on the cross-sectional area of the barometer tube.

  1. A.I and III only
  2. B.I, II and III only
  3. C.I, III and IV only
  4. D.I, II, III and IV.
Show the answer and explanation

Answer: A (I and III only)

Explanation

Pressure at a point acts equally in all directions and is the same at the same level. It increases (not decreases) with depth, and does not depend on the tube's area.