How is tidal energy harnessed?

Dam is constructed at certain height above sea that converts tidal energy to electrical energy.

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Dam is constructed across a narrow opening of sea which converts tidal energy to electrical energy.

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Kinetic energy of the waves of water is converted to electrical energy.

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None of these.

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Solution

The correct option is A
Dam is constructed at certain height above sea that converts tidal energy to electrical energy.

To harness the energy of tides, dam is constructed across a narrow opening of sea so there is always a difference in the level of water between two sides which causes flowing of water and rotation of turbine to convert tidal energy to electrical energy.

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Similar questions

Q. (a) Explain how tidal energy can used to generate electricity?
(b) Why is tidal energy not likely to be a potential source of energy?

Q. Floatingin the ocean are used to convert tidal energy into electrical energy.

Q. Which of the following convert the tidal energy of the ocean into electrical energy?

Statement 1: Dams are constructed to produce hydro electricity.

Statement 2: Dams obstruct the flow of water and water level rises, thereby increasing the potential energy which is further converted to kinetic energy, and then to electrical energy.

Statement 1: Dams are constructed to produce hydel electricity.

Statement 2: Dam obstructs the flow of water and water level rises thereby increasing the potential energy which is further converted to kinetic and then to electric energy.

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