Match List-I with List-II:
| List-I | List-II |
| (A) A device whose output is an enlarged version of input | (I) Amplifier |
| (B) The process of making adjustments so that the instrument readings conform to accepted standards | (II) Calibration |
| (C) Measures and generates an opposing effect to maintain zero deflection | (III) Null type detector |
| (D) An action to convey information | (IV) Signal |
Match Fibre with Application.\[\begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \textbf{Fibre} & \textbf{Application} \\ \hline \hline \text{A. Silk fibre} & \text{I. Fire retardant} \\ \hline \text{B. Wool fibre} & \text{II. Directional lustre} \\ \hline \text{C. Nomex fibre} & \text{III. Bulletproof} \\ \hline \text{D. Kevlar fibre} & \text{IV. Thermal insulation} \\ \hline \end{array}\]