Match the following: List I List II A. Reflex Klystron 1. High efficiency B. Dielectric loaded wave guide 2. Slow wave structure C. TWT 3. Cross field device D. Multi Cavity Klystron 4. Oscillator

• A-1, B-2, C-3, D-4
• A-4, B-3, C-2, D-1
• A-2, B-4, C-1, D-3
• A-3, B-1, C-4, D-2