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Sources of Energy — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceSources of Energy1 Mark
MCQ
Choose the incorrect statement regarding wind power:
  • A
    It is expected to harness wind power to minimum in open space.
  • ✓
    The potential energy content of wind blowing at high altitudes is the source of wind power.
  • C
    Wind hitting at the blades of a windmill causes them to rotate The rotation thus achieved can be utilised further.
  • D
    One possible method of utilising the energy of rotational motion of the blades of a windmill is to run the turbine of an electric generator.
✓

Answer

Correct option: B.
The potential energy content of wind blowing at high altitudes is the source of wind power.
A windmill works on kinetic energy of wind.

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