Discovering "Wonder Oscilloscope"

Hello folks!

How are you all?
Well, I am fine.

As I am studying B.E. in Electronics, we had a practical about Oscilloscope and Function Generators.
What is an Oscilloscope? Okay for guys who don't know, Wikipedia comes to help.

An oscilloscope (sometimes abbreviated CRO, for cathode-ray oscilloscope, or commonly just scope or O-scope) is a type of electronic test equipment that allows signal voltages to be viewed, usually as a two-dimensional graph of one or more electrical potential differences (vertical axis) plotted as a function of time or of some other voltage (horizontal axis).

Still not clear? Well it's a device that shows Frequency or Voltage in graphs.


Okay, after Ma'am explained us how these things work, my group went to isolated Oscilloscope and they called me, "Hey! c'mon turn this thing on", "are you guys nuts? Did ma'am gave you permission to use about this?" I said. "What do you think, we gonna come here all alone without Ma'am's permission?". I said "Okay!! Lets do this! I switched on, and went for Probe(Wire used in Oscilloscope) and asked ma'am if I could take it, she replied "You are the engineer! You don't need permissions". Wow! What an answer, I was very delighted at it. I went back, and tried hard, but there was no graph at all. Even guys from my group also tried, but still no graph. I thought might be this probe is not working. I went to ma'am again, and this time I went to change probe. "Ma'am! I need another probe, this ain't working." I said, "Actually, the probe is fine, it's the oscilloscope, it's not working :P" ma'am said.
I was like :O Ouch! Damn!
She deliberately asked us to use that Oscilloscope to make us busy or maybe laugh at our stupid ways to make that thing work :P
lol
I didn't know ma'am had too good sense of humour :)