Which one of the following statements is correct?
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UPSC Civil Services preparation
- AGulfs with narrow fronts and wider rears experience high tides.
- BTidal currents take place when a gulf is connected with the open sea by a narrow channel.Correct
- CTidal bore occurs when a tide enters the narrow and shallow estuary of a river.
- DThe tidal nature of the mouth of the river Hooghly is of crucial importance to Kolkata as port.
Explanation
Option B is correct because tidal currents are the horizontal movements of water caused by the rise and fall of tides. When a gulf or a bay is connected to the open sea through a narrow channel, the large volume of water moving in and out is forced through a restricted space. This constriction increases the velocity of the water, creating strong and distinct tidal currents. While the other options describe general tidal phenomena, option B accurately defines the specific condition under which tidal currents become prominent.
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