need help! So we did a diffraction grating lab where we pointed two types of las
ID: 1397806 • Letter: N
Question
need help!
So we did a diffraction grating lab where we pointed two types of lasers through a grating towards a white board and recorded a value (width of the slit) for single slits and d values for double slits and we also drew minimas from both sides of the central maxima for both double and single slits and measured the Y values between those minimas with a caliper and then did calculations. We used red and green lasers to find the double and single slit wavelengths. So what are some possible systematic errors in this experiment? I need atleast three but I can't think of any
Explanation / Answer
(1) :
When you had aligned the slits and screen, something must have been off
(2) :
You may had assumed that the table was perfectly perpendicular, and that the meter sticks were straight edge.
(3) :
Ruler measurements Error
(4) :
Slit width Error
(5) :
Slit separation Error
(6) :
Calibration of Angular Position to Meters Error
(7) :
Intensity Error
(8) :
You must measure the distance between the slits, the slits and the projection screen, and between the observed maxima on the screen all of which have both statistical and systematic errors
(9) :
There is the light source and its frequency which needs to be considered although it may turn out small compared to other errors.
(10) :
You may had used a balance that was not set to zero
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