Name the city where four 500 Kw super power short-wave transmitters were commissioned: (A) Chennai (B) Bengaluru (C) Mumbai (D) Kolkata Correct Ans: (D) Explanation: All India Radio (AIR) commissioned four 500 kW super power short-wave transmitters in Kolkata. Since short-wave radio signals travel long distances, these high-power transmitters significantly improved AIR’s international and domestic outreach. The installation of these high-frequency transmitters strengthened AIR’s global presence. Since short-wave technology enables long-distance communication, these transmitters enhanced radio coverage across India and even beyond national borders. This development also helped in broadcasting emergency alerts, cultural programs, and news updates to a vast audience. Now, let’s analyze the incorrect options. Although Chennai, Bengaluru, and Mumbai have strong broadcasting infrastructure, Kolkata was chosen for this project due to its strategic location and historical significance in Indian broadcasting. Since AIR aimed to improve signal strength and international reach, Kolkata became the ideal location for commissioning these high-power transmitters. In conclusion, All India Radio commissioned four 500 kW super power short-wave in Kolkata. Since this initiative expanded radio coverage and improved signal strength, it played a crucial role in strengthening India’s radio broadcasting network.