Question

Part B Lab Go to PhET website. Click on Simulation/Physics. Under Physics, choose Light & Radiation. Under Light & Radiation, Bending Light is the 6th simulation (Location might change. A to Z search.). Click to run the Bending Light/More Tools. Complete Data Table with Bending Light/More Tools Simulation: Basic Operation for More Tools Simulation: Place check marks on Ray, Normal, and Angles. Keep the default setting Material 1 (above surface) index of refraction as air nt = 1.000 and Material 2 (below surface) index of refraction as glass nam. Adjust incident wavelength of light to 2 = 700 nm. Press the Red Button of the light source. Using the default incident angle 01 = 45°, record the refracted angle 82 and index of refraction nam (under Material 2) to Data Table. Test and understand all functional tools on screen. You must practice figuring out what is the best way to complete the measurement.

please do table 2. the top page is for website info. only.

Answer 1

Data Table 2

01 (degree	02 (degree)	$\small I_{1}$ (%)	I2(%)	82c(degree
30	48.7	10.61	89.39	48.5903
40	74.8	39.52	60.48	74.6185
41.8	90	100	0	88.8503
42	90	100	0	90(approx)

for 42degree,the value of arc sin is goinf more that 1,1.0036 to be precise so i approximated it to 1

a) here for
01 > 41.8
,
06 = 02
,hence it is the critical angle.

b) using snell's law
ni sini = n2siniz
, using total internal reflection's condition
we put0 = 0,02 = 90°

hence
sin-1 (ng/n, sin90
=
c = sin-(1/1.5) = 41.8°

c)screenshot for 41.8 degrees

O Ray OO Wave 650 nm Material Custom 1.500 41.8° 41.8° Index of Refraction (n) Air Water Glass I T Material Custom Index of Refraction (n) 1.000 Air Water Glass C Speed 100.00% Time Intensity Normal Angles Bending Light PNET E Intro Prisms More Tools