The following six (6) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.
Statement I :
Geostrophic wind blows above a height of 600 metres, parallel to the isobars.
Statement II :
Geostrophic wind is the horizontal wind velocity, in which the Coriolis force balances the horizontal pressure force.
Both the statements are individually true and Statement II is the correct explanation of Statement I
Both the statements are individually true but Statement II is not the correct explanation of Statement I
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2018
– Coriolis Force (CF) acts perpendicular to the wind direction, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
– In geostrophic balance, PGF and CF are equal in magnitude and opposite in direction (acting on the wind vector).
– Friction is negligible above the boundary layer, allowing geostrophic balance to be achieved.