Which among the following is not a correct statement about coriolis force and its impacts?

Question

Accepted Answer

Option 1 is the correct answer because the Coriolis force is *not* zero at the poles. In fact, the Coriolis force is at its *maximum* strength at the poles.

Here's why:

*   **Coriolis Force and Latitude:** The Coriolis force is proportional to the sine of the latitude. At the poles (90° N/S), the sine of the latitude is 1 (sin(90°) = 1). This means the Coriolis force is at its maximum. At the equator (0°), the sine of the latitude is 0 (sin(0°) = 0), meaning the Coriolis force is zero.

Now, let's explain why the other options are incorrect:

*   **Option 2: It is a result of Earth's rotation.** This statement is correct. The Coriolis force is a *deflection* of moving objects (like air and water) caused by the Earth's rotation. If the Earth didn't rotate, there would be no Coriolis force. Therefore, this option is a correct statement and thus not the answer.

*   **Option 3: The amount of deflection in winds is closer to the poles.** This statement is also correct. As explained above, the Coriolis force is stronger at higher latitudes (closer to the poles). A stronger Coriolis force results in a greater deflection of winds. Therefore, this option is a correct statement and thus not the answer.

*   **Option 4: Air deflects to its right in the northern hemisphere.** This statement is correct. Due to the Earth's rotation and the Coriolis effect, moving objects in the Northern Hemisphere are deflected to the right of their direction of motion. Therefore, this option is a correct statement and thus not the answer.

In summary, only Option 1 is an incorrect statement about the Coriolis force, making it the correct answer. The Coriolis force is strongest at the poles, not zero.