TABLES356-358.-THE REFLECTION OF LIGHT. 



297 



According to Fresnel the amount of light reflected by the surface of a transparent medium 



i / A i D\ l i sin 2 (/' r) - tan 2 (/ r) ) 



= i (4 + } = - \ sin -2 (/ - _|_ r ) + tan 2 (/-fr) 5 ' 1S amount polarized in the plane of inci- 

 dence ; B is that polarized perpendicular to this ; i and r are the angles of incidence and refraction. 

 TABLE 356, Light reflected when i = or Incident Light is Normal to Surface. 



TABLE 357. Light reflected when n is near Unity or equals 1 + dn. 



TABLE 38. Light reflected when n = 1.55. 



Angle of total polarization = 57 10^.3, A = 16.99. 

 * This column gives the degree of polarization. t Columns 5 and 6 furnish a means of 



determining A and B for other values of . They represent the change in these quantities for a change of of o.ox. 



Taken from E. C. Pickering's " Applications of Fresnel's Formula for the Reflection of Light." 

 SMITHSONIAN TABLES. 



