26. In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as A. Transmission efficiency B. Front to back ratio C. Loss coefficient D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
27. The frequency range for satellite communication is A. 3 to 30 kHz B. 300 to 3000 kHz C. 3000 to 30000 MHz D. 30000 to 300000 MHz Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
28. The static electric field in a conductor is A. Zero B. Unity C. Infinity D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
29. The skip distance is the maximum distance upto which ionospheric reflection is possible. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
30. Parabolic and lens antenna used at A. Microwave frequency B. Medium frequency C. Low frequency D. High frequency Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
