NDA NA I 2017 Q94

1. Match List I with List II and select the correct answer using the code given below. List I: A. Argon, B. Neon, C. Krypton, D. Xenon. List II: 1. In lights for advertising display, 2. Airport landing lights and in light houses, 3. Light in photographer’s flash gun, 4. In tungsten filament to last longer