Lab moderna: add P1

Change-Id: Ibbbfa656bfcd29eef2afb9dbd78488e4484054b6
diff --git a/quad12/labmoderna/p1a/grafiques/fons_fluctuacio.tex b/quad12/labmoderna/p1a/grafiques/fons_fluctuacio.tex
new file mode 100644
index 0000000..22a3fd5
--- /dev/null
+++ b/quad12/labmoderna/p1a/grafiques/fons_fluctuacio.tex
@@ -0,0 +1,211 @@
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