Link required: https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_en.html

STEPS:

?Select the "Intro" tab

? Chose glass as the second medium in order to study reflection on plane surface

?Let air be the first medium

NEXT:

?Use the protractor in the simulation and let the light ray fall on the glass surface at the incident angles given in table 1.

Percent Difference = Angle of reflection-Angle of incidencel x 100% Angle of incidence SL No. Angle of Incidence Angle of Reflection Percent Difference (in degrees) (in degrees) 5 20 14 35 30 50 43 65 80 n/a Table 1