InterviewSolution
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InterviewSolution
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Two waves A and B of frequencies 2MHz and 3 MHz, respectively are beamed in the same direction for communication via sky wave. Which one of these is likely to travel longer distance in the ionosphere before suffering total internal reflection?A. AB. BC. Both (a) and (b)D. None of these |
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Answer» Correct Answer - B Refractive index increases with frequency . `:.` For higher frequency waves , refraction is less or bending is less. So , total internal reflection is achieved by 3MHz wave in larger distance . |
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