Gce Model Questions Vol1 2025 Geography Question 46

Practice objective / multiple choice question 46 from the 2025 Gce Model Questions Vol1 Geography examination.

Gce Model Questions Vol1 2025 Geography Objective / Multiple Choice Medium Difficulty
Question 46 GCE_MODEL_QUESTIONS_VOL1 • 2025 • GEOGRAPHY • objective

The diagram shows a simplified weather map at latitude 45° N. Isobars are drawn as parallel east‑west lines spaced 2 cm apart on the map. The map scale is 1 cm : 20 km. The pressure difference between adjacent isobars is 4 hPa. Assuming air density \( \rho = 1.2 \ \text{kg m}^{-3} \) and using the Coriolis parameter \( f = 2\Omega\sin\phi \) with \( \Omega = 7.292\times10^{-5}\,\text{s}^{-1} \), calculate the approximate geostrophic wind speed in m s\( ^{-1} \) and state its direction relative to the isobars.

Answer Options

Correct Answer A. Approximately \(81\ \text{m s}^{-1}\) directed eastward (parallel to the isobars with low pressure to the left in the Northern Hemisphere).
B. Approximately \(45\ \text{m s}^{-1}\) directed westward (parallel to the isobars with low pressure to the right in the Northern Hemisphere).
C. Approximately \(60\ \text{m s}^{-1}\) directed northward (across the isobars with low pressure to the left in the Northern Hemisphere).
D. Approximately \(100\ \text{m s}^{-1}\) directed eastward (parallel to the isobars with low pressure to the left in the Northern Hemisphere).
Correct Answer
A
Correct Option:
Approximately \(81\ \text{m s}^{-1}\) directed eastward (parallel to the isobars with low pressure to the left in the Northern Hemisphere).

About This Question

This is Gce Model Questions Vol1 2025 Geography Question 46. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Geography examination.

Difficulty level: Medium .

View More Gce Model Questions Vol1 2025 Geography Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support