Statement 1: Dams are constructed to produce hydro electricity.
Statement 2: Dam obstruct the flow of water and water level rises thereby increasing the potential energy which is further converted to kinetic and then to electric energy.

Statement 1 and Statement 2 are correct, statement 2 is not the correct reason for statement 1.

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Statement 1 is correct and statement 2 is incorrect.

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Statement 1 and statement 2 are correct, statement 2 is the correct explanation of statement 1.

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Both statements are incorrect.

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Solution

The correct option is C
Statement 1 and statement 2 are correct, statement 2 is the correct explanation of statement 1.

Dams hold water in reservoirs which can be used to produce hydroelectricity. The water held back by dams are allowed to flow through a turbine to produce electric energy.

Electricity produced from hydropower plants is also known as hydel electricity.

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Q. 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 and then to electric 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.

Q. At a hydro power plant:

(a) kinetic energy possessed by stored water is converted into electrical energy
(b) electricity is extracted from water
(c) water is converted into steam to turn turbines and produce electricity.
(d) potential energy possessed by stored water is converted into electricity.

Q. Arrange the following steps in the conversion of hydel energy to electricity in a proper sequence.
(a) Released water is made to fall on the blades of the turbines.
(b) Water in the dam is released.
(c) Water is collected in the dam.
(d) Potential energy is converted to kinetic energy.
(e) The armature of the electric generator rotates to produce electricity.

Question 4
In a hydro power plant
(a) Potential energy possessed by stored water is converted into electricity.
(b) Kinetic energy possessed by stored water is converted into potential energy.
(c) Electricity is extracted from water.
(d) Water is converted into steam to produce electricity.

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Statement 1: Dams are constructed to produce hydro electricity. Statement 2: Dam obstruct the flow of water and water level rises thereby increasing the potential energy which is further converted to kinetic and then to electric energy.

Statement 1: Dams are constructed to produce hydro electricity.
Statement 2: Dam obstruct the flow of water and water level rises thereby increasing the potential energy which is further converted to kinetic and then to electric energy.