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In a hydroelectric power plant, the energy conversion sequence is:
AMechanical -> chemical -> electrical
BSound -> electrical
CPotential -> kinetic -> mechanical -> electrical
DSolar -> chemical -> electrical
Answer & Solution
Correct answer: C. Potential -> kinetic -> mechanical -> electrical
1. Water stored at height has gravitational potential energy.
2. As it falls, the potential energy converts to kinetic energy.
3. The fast-moving water rotates the turbines (mechanical energy).
4. The turbine spins a generator that produces electricity.
5. So the chain is potential -> kinetic -> mechanical -> electrical.
_Source: NCERT Class 10 Science Ch 14 'Sources of Energy' (byjus.com extract)_
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