When isobars are straight and when there is no friction the pressure gradient force is balanced by t...........

Geography Atmosphere

When isobars are straight and when there is no friction, the pressure gradient force is balanced by the Coriolis force and the resultant wind blows parallel to the isobar. This wind is known as

Geostrophic wind

Anabatic Wind

Cyclonic Circulation

Jet Stream

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Explanation:

Geostrophic Wind is Horizontal wind in the upper atmosphere that moves parallel to isobars. Results from a balance between pressure gradient force and Coriolis force.
Anabatic Winds are upslope winds driven by warmer surface temperatures on a mountain slope than the surrounding air column.

Cyclonic circulation is the swirling motion of winds caused by a low-pressure area.

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. The winds blow from west to east in jet streams but the flow often shifts to the north and south.

Hence option 1 is correct.