Question

During the experiment of Relection & Refraction, following data is measured. 7. Angle of incidence Angle ofAngle of Wavelength: 650nm Top Medium: Air and Bottom Medium: Water reflection refraction 69 ° 64 o 59 o 54o 49° 1070 118° 128 о 135 70° 65 60° 55° 50° 45° 40° 35° 30 ° 73 62 52 45 Data: Reflection Reflection or Refraction vs Iac Rel Refr 140 120 100 60 40 20 Inc 10 20304 5050 70 (a) Obtain the critical angle using graph method (i vs r) (b) Obtain the percent error of the critical angle (Measurement is the observable angle) 5/58 (0c -45) 17, 0c 46.470 Percent error ((48.75-46.47)/48.75) x 100 (c) Find the wavelength at the medium (d) Find the velocity of light at the mediurm (e) Find the refraction index of water from the 35° case

Answer 1

a> The critical angle i오 delined as he incident e angle of refrachon f as ohe inciden ig de nne anale anyle ais Whe enhcal angle ong is omound 46 nommal chon ohich anale s 90 Shovwn red lihe

Reflection or Refraction vs Inc Rel Refr 140 120 100 82 60 40 20 Inc 10 20 30 50 70

Thaseialcane calulaed lauo icall 1.33 ercent error to0 ee it 100 e> uhen liakt travels from one medium Mohere uaavelenaj. change h oavelengu at he mechum is caleuloted colere nisme u sin mefraemtium

Enwater ·S7 3-1-37