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Consider the following statements about Coriolis force:
1. It is zero at the equator and maximum at the poles.
2. It acts perpendicular to the pressure gradient.
3. Deflection caused due to Coriolis force will be less if the wind velocity increases.
Choose the correct answer using the codes below:
- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)All of the above
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements about Coriolis force: 1. It is zero...
Coriolis force:
The Coriolis force is an apparent force that acts on objects moving in a rotating system, such as the Earth. It is caused by the rotation of the Earth and its effect on the motion of objects in the atmosphere or oceans.
Statement 1: It is zero at the equator and maximum at the poles.
The Coriolis force is directly proportional to the sine of the latitude. At the equator, the latitude is zero, so the sine of zero is also zero. Therefore, the Coriolis force is zero at the equator. As we move towards the poles, the latitude increases, and so does the Coriolis force. Therefore, statement 1 is correct.
Statement 2: It acts perpendicular to the pressure gradient.
The pressure gradient force is responsible for the movement of air from high pressure to low pressure areas. The Coriolis force acts perpendicular to the direction of motion, not the pressure gradient. Therefore, statement 2 is incorrect.
Statement 3: Deflection caused due to Coriolis force will be less if the wind velocity increases.
The deflection caused by the Coriolis force depends on the speed of the object and the latitude. The deflection is directly proportional to the speed of the object. Therefore, if the wind velocity increases, the deflection caused by the Coriolis force will also increase. Therefore, statement 3 is incorrect.
Conclusion:
From the above analysis, we can conclude that statement 1 is correct, statement 2 is incorrect, and statement 3 is incorrect. Therefore, the correct answer is option 'A' - 1 and 2 only.
The Coriolis force is an apparent force that acts on objects moving in a rotating system, such as the Earth. It is caused by the rotation of the Earth and its effect on the motion of objects in the atmosphere or oceans.
Statement 1: It is zero at the equator and maximum at the poles.
The Coriolis force is directly proportional to the sine of the latitude. At the equator, the latitude is zero, so the sine of zero is also zero. Therefore, the Coriolis force is zero at the equator. As we move towards the poles, the latitude increases, and so does the Coriolis force. Therefore, statement 1 is correct.
Statement 2: It acts perpendicular to the pressure gradient.
The pressure gradient force is responsible for the movement of air from high pressure to low pressure areas. The Coriolis force acts perpendicular to the direction of motion, not the pressure gradient. Therefore, statement 2 is incorrect.
Statement 3: Deflection caused due to Coriolis force will be less if the wind velocity increases.
The deflection caused by the Coriolis force depends on the speed of the object and the latitude. The deflection is directly proportional to the speed of the object. Therefore, if the wind velocity increases, the deflection caused by the Coriolis force will also increase. Therefore, statement 3 is incorrect.
Conclusion:
From the above analysis, we can conclude that statement 1 is correct, statement 2 is incorrect, and statement 3 is incorrect. Therefore, the correct answer is option 'A' - 1 and 2 only.
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Consider the following statements about Coriolis force: 1. It is zero...
Coriolis force: The deflection is greater when the velocity of the wind is high. The Coriolis force is directly proportional to the latitude angle. At the poles, it is maximum, and at the equator, it is absent.
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Consider the following statements about Coriolis force: 1. It is zero at the equator and maximum at the poles.2. It acts perpendicular to the pressure gradient.3. Deflection caused due to Coriolis force will be less if the wind velocity increases.Choose the correct answer using the codes below:a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of the aboveCorrect answer is option 'A'. Can you explain this answer?
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