Refractive Index of Perspex
Aim: the essence this research is to find the refractive index of Perspex. Equipment:
Place an A4 paper in the Styrofoam, in that case Place the Perspex glass around the middle of the A4 paper and mark their place.
Create a pin regarding away from the area of the Perspex glass, Bring six items about 10 degrees faraway from each other since labeled by 1-6 around the right area of the pin number.
Put a pin in point 1 and look through the glass and try putting a pin which can be parallel to point 1 .
Repeat the process and set another pin. Do this for those points. There after draw a line from each indicate the flag. Then bring a straight range passing all the same designated points of the removed cup. Using a Protractor find just how much each angle equals from your normal, and fill the data in a desk then the actual calculations and graphing needed shown in the data processing.
Chart of bad thing ������ and sin������:
0. sixty four
0. seventy six
0. eighty six
0. thirty four
������ 2−������ 1
������ two −������ 1
0. 9−0. 4
0. 7−0. four
= 1 ) 67
Analysis: Realization: The refractive index of Perspex, attained to calculations and the chart is 1 ) 67, which is good compared to other results. Neither method is totally accurate, but the benefit from the chart is more exact refractive index of Perspex.
Types of Errors: 1 . The episode ray plus the refracted ray drawn might have been incorrect. As a result this would be offering incorrect perspective results. installment payments on your The stop might not have recently been drawn accurate and thus leading to incorrect outcomes..
3. Not too accurate since putting the pins is done by eye-sight.
Improvements: 1 . By using a Perspex glass with a greater height. 2 . The try things out should be repeated being more accurate with perspective and calculations
3. Have protractor accurately on the line.
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