Aug2016 cs Q26
0. Which of the following statements is not true with respect to microwaves?
- Option : A
- Explanation : Electromagnetic waves with frequencies not ranges from 300 GHz to 400 THz. It ranges from (0.3 to 300) GHz. So, I option is Incorrect. Propagation is line-of-sight.Correct Very high-frequency waves cannot penetrate walls.Correct Use of certain portions of the band requires permission from authorities.Correct So, option (A) is correct.
