Discussion
Assertion (A): Increasing aspect ratio is as valuable supersonically as it is subsonically.
Reason (R): Induced drag varies inversely with aspect ratio.
Select the correct answer from the options below.
Answer: C
The assertion is false and the reason is true. Induced drag does fall with aspect ratio, but at supersonic speed it is a much smaller share of the total, and a longer span pushes the tips outside the Mach cone and adds wave drag. Supersonic wings are therefore short and highly swept.
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