With reference to Coriolis force which of the following is are true 1 In southern hemisphere it defl...........

Geography (CUET) NCERT

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With reference to Coriolis force, which of the following is/are true?

1. In southern hemisphere it deflects the wind to the left.

2. Coriolis force is directly proportional to the velocity of wind.

3. The Coriolis force acts perpendicular to the pressure gradient force

Select the correct answer from the following codes

1 Only

1 and 2 Only

2 and 3 Only

1, 2 and 3

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Explanation:

Explanation: The rotation of the earth about its axis affects the direction of the wind. This force is called the Coriolis force. It acts perpendicular to the pressure gradient. If the pressure gradient force is higher than the velocity of the wind will be more and larger deflection in the direction of wind. The Coriolis force is zero and the wind blows perpendicular to the isobars at the equator. Wind moves from higher pressure to low pressure and it is deflected to the right and left by Coriolis force It 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. The pressure gradient force is perpendicular to an isobar. The higher the pressure gradient force, the more is the velocity of the wind and the larger is the deflection in the direction of wind.