Question

A light beam in air (nair = 1) is incident on a horizontal glass plate (nglass = 1.58) and the reflected ray is completely polarized. The intensity of the polarized reflected beam is measured as lo = 30.0 W/cm2. It is incident on a stack of two polarizing filters, with the polarizing axis of the first and second filters at angles of 21°and 56°, respectively, from the vertical a) What is the angle of refraction for the beam in degree? b) What is the intensity of the light after it has passed through the stack?

Answer 1

air prtai sed ifident pecifi amlest veti cal Reteled ight amt elely ight makes Called Ca) ine by OB tam Op t/15 5.6 0 Ов cal culatid y nels Lau amyse freractian o () Sin 1.58 85-1 0.538 32.3 ,32 30 8rfrnetion 211

(b) 30.0 W/c Inteni ty redudiom i juom b Malus's dw Infenstty ushn t pames thnonyh first frlten I, c(21) (30.0 W/C 816) 2.14 W u WUM dteiy feta ban thoyh when thi secen of First one then 5' T2 (26.14 Wt) (.31 22) 8-176 W/m