Blank Data Sheet here 
FOR THE INDEX OF REFRACTION LAB, your INTRO/ABSTRACT
should state what the purpose of the experiment was. I think you
know what it is. To measure *something*
using a tank of shallow water and two slots. (Include a diagram with key
geometry.) What is that "something?" Just state in your
abstract/intro whether or not you successfully completed the goal
by quoting your percent error and whether or not n_{w} = nacc = 1.33 falls
within the range I wrote on the board. You should compute the percent
error as well as range information discussed next:  n_{best}  nacc  < overall error nacc = 1.33 (Overall error)^{2} = a^{2} + b^{2}. Take the square root of both sides to be get overall error. Here, 




LC/2 = 0.25/2 = 0.125 = 0.1  
theta_i 
35.50  
35.75  
35.50  
35.50  
theta_i_{best }
(average of the 4 above) 

Δtheta_i_{inst }
= 0.125 = 0.1 

(theta_i_{max} –
theta_i_{min})/4
= 

Δtheta_i (larger
of previous two.) 


52.25 

52.00  
52.00  
52.25  
theta_f_{best}
(average of the 4 above) 

Δtheta_f_{inst }
=0.125 = 0.1 

(theta_f_{max} –
theta_f_{min})/4 

Δtheta_f (larger
of previous two.) 

n_{best} 
sin(theta_f_{best})
/sin (theta_i_{best})
= 

See formula at the top of the page  overall error in n_{best}=  
Percent error  
Compare:  n_{best} n_{acc}  < overall error in n_{best}? 



