Given below are two statements: one is labelled as Assertion (A) and the other…
2026
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A wind mill will be more effective if it is placed at a higher elevation above the ground than a lower one.
Reason (R): Generally, the wind speed increases with altitude above the earth's surface.
In the light of the above statements, choose the most appropriate answer from the options given below:
- A.
Both (A) and (R) are correct and (R) is the correct explanation of (A)
- B.
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
- C.
(A) is correct but (R) is not correct
- D.
(A) is not correct but (R) is correct
Attempted by 26 students.
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Correct answer: A
Both Assertion and Reason are true, and the Reason correctly explains the Assertion. Wind speed generally increases with altitude due to reduced surface friction and turbulence. Since windmill power output depends on wind speed, placing it at a higher elevation makes it more effective.