What did you write for the "comment on safety" for the refractive index experiment?
Also for the how to find refractive index question i wrote Refractive index = Sin I / Sin r Take a reading of angle of incidence and refraction from the graph Multiply them by sin and divide to find refractive index
What did you write for the "comment on safety" for the refractive index experiment?
Also for the how to find refractive index question i wrote Refractive index = Sin I / Sin r Take a reading of angle of incidence and refraction from the graph Multiply them by sin and divide to find refractive index
Is that correct?
I put: draw a graph of sin 1 against sin r and calculate the gradient which will give you the refractive index. For safety, I said don't point the ray box towards yours and others' eyes as the laser can damage your eyes,
What did you write for the "comment on safety" for the refractive index experiment?
Also for the how to find refractive index question i wrote Refractive index = Sin I / Sin r Take a reading of angle of incidence and refraction from the graph Multiply them by sin and divide to find refractive index
Is that correct?
For safety I wrote low voltage
but for refractive index calculation they asked for graphical calculation, so you had to say draw a graph of sin i on sin r and find gradient
I put: draw a graph of sin 1 against sin r and calculate the gradient which will give you the refractive index. For safety, I said don't point the ray box towards yours and others' eyes as the laser can damage your eyes,
That makes sense, the answers should be identical for both methods so I don't think it'll be a big deal, for safety i said that this is a low risk experiment and i added one more point which was the risk of falling block so wear foot protection.
It should be on your eye level horizontally , like you need to make your eyes directly parallel to the measurement, some people can stand away from the protractor and count.
It should be on your eye level horizontally , like you need to make your eyes directly parallel to the measurement, some people can stand away from the protractor and count.
I said parralex errors when using protractor and I said other rays might be incident on the glass block so in brackets I said do the experiment in a dark room
I said parralex errors when using protractor and I said other rays might be incident on the glass block so in brackets I said do the experiment in a dark room
Oh okay, I said that there's an uncertainty of 0.5 degrees when taking the readings, especially since the angles can be quite small. Would this be okay?
Guys my value for resistivity was 4.6x10^-6? i think i did something wrong when finding the area of the wire but my gradient was 4.5? i thing im out of the range of what they would expect
hey my exam was good. is the graph supposed to be a straight line or a curvy type of thing. if i used the right method to find gradient and the value of resistivity but got the wrong answer will i get any marks.
Guys my value for resistivity was 4.6x10^-6? i think i did something wrong when finding the area of the wire but my gradient was 4.5? i thing im out of the range of what they would expect
did u convert the diameter to radius? Gradient was 4.96 i think so when u round it would be 5 not sure if urs was right.