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Using a Laser Pointer to Measure the Data Track Spacing on C
Posted: Sat Feb 22, 2014 7:10 pm
by sonya143
My project is Using a Laser Pointer to Measure the Data Track Spacing on CDs and DVDs and i cant fill in the data table that they give in the procedure
HELP MY PROJECT IS DUE TOMMOROW
Re: Using a Laser Pointer to Measure the Data Track Spacing
Posted: Tue Feb 25, 2014 10:44 pm
by deleted-71487
I'm sorry that no one was able to get back to you in the short time allowed before your project was due.
I'm not sure what the difficulty you had was. Basically, you try shining the laser at different incident angles, and then you look at where the reflections show up on the protractor. The m=0 reflection should be the one that has the closest to the same angle as the angle of incidence. m=-1 will be the next one towards the incoming laser, and m=1 the next one further from the incoming beam.
Then, calculate your d values using the equation given in the procedure, and fill those in as well.