Question

Q. With reference to the Coriolis Force, which of the following statements is/are correct?

Select the correct answer using the code given below:

• A. 1 and 2 only
• B. 2 only
• C. 2 and 3 only
• D. 1, 2 and 3

Answer 1

The correct option is D 1, 2 and 3

Explanation:

• Statement 1 is correct: Coriolis force is an apparent force created due to the rotation of the earth about its axis. This force is called the Coriolis force after the French physicist who described it in 1844. The earth’s rotation is the main cause for the Coriolis effect as the earth rotates faster at the equator, while near the poles, the rotation is sluggish. This is because the rate of change in the diameter of the earth’s latitude increases near the poles.
• Statement 2 is correct: Coriolis Force deflects the wind to the right direction in the northern hemisphere and to the left in the southern hemisphere. The deflection is more when the wind velocity is high.
• Statement 3 is correct: The Coriolis force is directly proportional to the angle of the latitude. It is maximum at the poles and is absent at the equator. The Coriolis force acts perpendicular to the pressure gradient force