Waec Model Questions Vol1 2020 Geography Question 36

Practice objective / multiple choice question 36 from the 2020 Waec Model Questions Vol1 Geography examination.

Waec Model Questions Vol1 2020 Geography Objective / Multiple Choice Medium Difficulty
Question 36 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • GEOGRAPHY • objective
Waec Model Questions Vol1 2020 Geography Question 36 diagram

The diagram shows two parallel isobars labelled 1012 hPa (northern line) and 1008 hPa (southern line) spaced 80 km apart.\n(a) Calculate the pressure gradient between the isobars in pascals per metre (Pa m⁻¹).\n(b) Assuming an air density of 1.2 kg m⁻³ and a Coriolis parameter of 1.0×10⁻⁴ s⁻¹, estimate the geostrophic wind speed at this latitude.

Answer Options

A. Pressure gradient = 0.004 Pa m⁻¹; Geostrophic wind speed ≈ 35 m s⁻¹
B. Pressure gradient = 0.005 Pa m⁻¹; Geostrophic wind speed ≈ 30 m s⁻¹
Correct Answer C. Pressure gradient = 0.005 Pa m⁻¹; Geostrophic wind speed ≈ 42 m s⁻¹
D. Pressure gradient = 0.006 Pa m⁻¹; Geostrophic wind speed ≈ 50 m s⁻¹
Correct Answer
C
Correct Option:
Pressure gradient = 0.005 Pa m⁻¹; Geostrophic wind speed ≈ 42 m s⁻¹

About This Question

This is Waec Model Questions Vol1 2020 Geography Question 36. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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