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The sky wave propagation is suitable for...

The sky wave propagation is suitable for radiowaves of frequency—

A

upto 2MHZ

B

From 2MHZ to 20 MHZ

C

From 2MHZ to 30 MHZ

D

from 2MHZ to 50 MHZ

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UNITED BOOK HOUSE-MODEL PAPER SET-07-EXERCISE
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