Question

Which of the following statements is/are correct regarding the instrument cup anemometer ?
(i) It is used to measure the speed of the wind.
(ii) The hollow metallic cups in it are used to increase the speed of the wind.
(iii) The number of revolutions in anemometer is directly proportional to the speed of the wind.
A. (i) only
B. (i),(ii),(iii)
C. (i) and (iii) only
D. None of these

Answer 1

Answer:

A.

Explanation:

it is used to measure the speed of the wind.