# GENERAL KNOWLEDGE

## GK

### PHYSICS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Aspect ratio of a wing is defined as the ratio of the
 A Wingspan to the wing root B Square of the chord to the wingspan C Wingspan to the mean chord D None of the above
Explanation:

Detailed explanation-1: -In aeronautics, the aspect ratio of a wing is the ratio of its span to its mean chord. It is equal to the square of the wingspan divided by the wing area. Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing has a low aspect ratio.

Detailed explanation-2: -For a wing, the aspect ratio is the ratio of wing length to average chord. Similarly, for a propeller, the aspect ratio is the ratio of blade length to average chord.

Detailed explanation-3: -A wing’s aspect ratio is the square of the wingspan divided by the wing area, or the ratio of the wingspan to the mean of its chord. Because of how heavily these two attributes weigh on wings, most bird wings are either a high speed wing, elliptical wing, soaring wing, or high aspect ratio wing.

Detailed explanation-4: -Aspect Ratio and Chord Length Aspect ratio is a ratio of the square of the span to the wing area. In rectangular wings, the chord length along the span at every location is the same. Therefore, when calculating the aspect ratio of the rectangular wing, it reduces to the ratio of span to chord length of the airfoil.

Detailed explanation-5: -One way to calculate an aspect ratio is to find the wingspan (the distance from wingtip to wingtip) and the area of the wings. Then multiply the wingspan by itself and divide the result by the wing area: aspect ratio = span x span ÷ area.

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