diff --git a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 2.md b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 2.md
index 2516bf628..cac65137f 100644
--- a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 2.md	
+++ b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 2.md	
@@ -30,4 +30,15 @@ Now with LLout
 | 200/1000         | 174             |     |
 |                  |                 |     |
 Question 2.3 492 nanoseconds
-Question 2.4 It moves to the right. Stopping about halfway
\ No newline at end of file
+Question 2.4 It moves to the right. Stopping about halfway\
+
+Exercise 2.4
+
+| 480 Pulse Height | 551 Lower level |     |
+| ---------------- | --------------- | --- |
+| 1000/1000        | 810             |     |
+| 800/1000         | 650             |     |
+| 600/1000         | 490             |     |
+| 400/1000         | 330             |     |
+| 200/1000         | 164             |     |
+|                  |                 |     |
\ No newline at end of file