On a particular day, the maximum frequency reflected from the ionosphere is 8 MHz. On other day it was found to increase to 9 MHz. Then ratio of maxim
On a particular day, the maximum frequency reflected from the ionosphere is 8 MHz. On other day it was found to increase to 9 MHz. Then ratio of maximum electron densities of the ionosphere on two days will be
A. `9/8`
B. `8/9`
C. `81/64`
D. `64/81`
4 views
1 Answers
Correct Answer - 4
`v_(C)=9sqrt(N_(max.))`
`therefore (N_(max_(.1)))/N_(max_(.1))=((v_(e_(1)))/v_(e_(2)))^(2)=(8/9)^(2)`
4 views
Answered