Line width The line width is the width of the peak at the half height of the peak (height measured from the averass point of the noise). Practic As a practice to calculate Signal to Noise Ratio and Linewidth; you will do those two measurements and calculation on the graph below, and show the results to your instructors. Once you got those results correctly, then you can do the same measurements on your three spectrums- 1. What was the effect of the concentration on the line width? 2. What was the effect of the number of scan on the line width? snal to Noise Ratio 3. What is the effect of increasing the concentration? Is it a linear relationship? 4. What is the effect of increasing the number of scans. 5. It is said that the signal to noise is proportional to (N) where N is the number of scans. Is that verified (justify)