Question

AL PHYSICS 2 LAB 4 Displacement of Incident ray: On the refraction diagram you have drawn, use a ruler and extend the incident ray. (The figure below shows how this will look.) On your refraction diagram, measure the perpendicular distance between the extended ray and the refracted ray exiting the block of glass. Record this as your measured displacement below. 1.74 Using your measured angle of incidence (0) and the Indices of refraction for air and the crown gloss block, calculate the angle of refraction. From that, your measured width (w) of the glass block and your knowledge of trigonometry, calculate the theoretical displacement (d) of the ray. Measured width, w=_7CM Measured displacement = _3 CM Calculated displacement - Percent error = (Theoretical valuo) 415

Answer 1

1 KH- K kg = tomo - x₂ = wtomo, 313 38 si = tem Oz x, = wtom O2 x-x, = wltom o, - tom O2) k x2-se, 90-0 a (x - 2) sin (90-0,) = d = (x2-21) Com O

so d= wlton 0, - tom O2) Csoi 0 given 0 = 45° n = 1 m₂ = of glass = 1.517 Crown glans so ni sino = my fino I fin45 = 7.517 fin O2 - > O2 = 27.783° from egn o f = 7 / ten ys - fom 27-783) x 60 45° = 0.47314 x 7 a = 2-342 cm