Using a Laser Pointer to Measure the Data Track Spacing on C

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Zdude
Posts: 1
Joined: Thu Mar 24, 2011 7:26 pm
Occupation: Student: 7th Grade
Project Question: I can only get two beams to reflect for the CD and DVD and i was wondering if there is a variation of the project i could do. Hopefully without the math problem.
Project Due Date: Monday, March 28th
Project Status: I am conducting my experiment

Using a Laser Pointer to Measure the Data Track Spacing on C

Post by Zdude »

:? My Science project is due this Monday and I am confused on a few parts. Whenever i shine the beam down i get the same angles for the CD and then i get the same for the DVD every trial. I always only get two reflecting though and I'm not sure which they are. Is there any variation i can do on the project without the math problem beacause that's the only way i might be able to finish in time. :oops: Am i performing the experiment correctly?
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deleted-71588
Former Expert
Posts: 1297
Joined: Mon Oct 16, 2006 11:47 am

Re: Using a Laser Pointer to Measure the Data Track Spacing

Post by deleted-71588 »

If you change the incident angle, the angles of the refracted beams should change. If not, there is something wrong.
-Craig
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