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Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 12 (Q.No. 23)
Communication Systems
23.

Assertion (A): Radio transmission is by sky waves

Reason (R): Waves having frequencies higher than 30 MHz penetrate the atmosphere and do not return to earth.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
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