Match List - I with List - II. Match the following filter characteristics with graph showing frequency versus magnitude along $x$ and $y$ axis, respectively :
List - I List - II A. Low pass filter I. 
B. High pass filter II. 
C. Band-pass filter III. 
D. Band-reject filter IV. 
Choose the correct answer from the options given below :
To solve this problem, we need to match the filter characteristics from List-I with the corresponding frequency response graphs from List-II.
Let's explain each type of filter:
Now, match each graph with the correct filter type:
Therefore, the correct matching is:
Option: A-II, B-IV, C-I, D-III
This matches the given correct answer.
| List-I | List-II |
| Electronic Configuration | First Ionisation energy (kJ mol$^{-1}$) |
| (A). ns$^2$ | (I). 2100 |
| (B). ns$^2$np$^1$ | (II). 1400 |
| (C). ns$^2$np$^3$ | (III). 800 |
| (D). ns$^2$np$^6$ | (IV). 900 |
| List-I | List-II |
| Spectroscopy | Property |
| (A). Raman | (I). Polarizability |
| (B). FTIR | (II). Dipole Moment |
| (C). UV-Visible | (III). Absorbance |
| (D). NMR | (IV). Spin |