Gilbert light experiments for boys . 30 GILBERT BOY ENGINEERING. Fig. 47. The beams are in the same plane perpendicular to themirror opposite thespot where the lightstrikes the mirror (). Do you find thatthe angle between thereflected beam and theruler is equal to theangle between the in-cident beam and theruler? Hold a sheet ofcardboard edge-wise to the incident and reflected beams in such aposition that the incident beam is split in two (Fig. 47). Is thereflected beam also split in two? That is, are the reflected andincident beams inthe same plane? You have hereproved the law ofreflect
Gilbert light experiments for boys . 30 GILBERT BOY ENGINEERING. Fig. 47. The beams are in the same plane perpendicular to themirror opposite thespot where the lightstrikes the mirror (). Do you find thatthe angle between thereflected beam and theruler is equal to theangle between the in-cident beam and theruler? Hold a sheet ofcardboard edge-wise to the incident and reflected beams in such aposition that the incident beam is split in two (Fig. 47). Is thereflected beam also split in two? That is, are the reflected andincident beams inthe same plane? You have hereproved the law ofreflection. Experiment No. the beam fall ona piece of white un-glazed paper (). Is there no re-flected beam; is the light reflected in all directions and does it makeeverything around it brighter? The light isreflected in all directions because the surface riS^?flectiongUlar is rOUgh (See Fi§- 49) fngh 8chooinphy8- You see a11 non^mmous objects by means%? & VSuS of %ht which they reflect irregularly.
Size: 1945px × 1285px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificrecreation
