Choose the incorrect statement regarding wind power
(A) It is expected to harness wind power to minimum in open space
(B) 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 : (A, B)
(A) It is expected to harness wind power to minimum in open space – Incorrect as in open spaces wind flows easily and wind power is highest.
(B) The potential energy content of wind blowing at high altitudes is the source of wind power – Incorrect as wind power is completely dependent on the wind speed and not the altitude. That’s why we see wind mills in coastal areas due to high wind speeds than in high altitude areas
(C) and (D) are correct.
Therefore options (A, B) are correct