A parallelbeamof lightof intensityI_0is incidentona coatedglassplate. IF25%of theincidentlightis reflected fromthe uppersurfaceand 50 %oflight if reflectedfrom theglassplate, theratioofmaximumtominimumintensityin theinterferenceregionof thereflectedlightis

A parallelbeamof lightof intensityI_0is incidentona coatedglassplate.

1.	A parallelbeamof lightof intensityI_0is incidentona coatedglassplate. IF25%of theincidentlightis reflected fromthe uppersurfaceand 50 %oflight if reflectedfrom theglassplate, theratioofmaximumtominimumintensityin theinterferenceregionof thereflectedlightis
Answer» `((1/2+sqrt((3)/(8)))/(1/2-sqrt((3)/(8))))^2` `((1/4+sqrt((3)/(8)))/(1/2-sqrt((3)/(8))))^2` `5/8` `8/5` SOLUTION :Accordingtoquestion, we candrawthefollowingdiagram ` (##ARH_5Y_SP_17_E01_014_S01.png" width="80%"> ` I_1=(I_0)/(4) impliesI_2 = (3)/(8) I_0` Weknowthat , ` (I_("max"))/(I_("min "))=((sqrt((I_1))+ sqrt(I_2))^2)/(( sqrt(I_1 )-sqrt(I_2))^2)=((1/2+sqrt(3/8))/( 1/2-sqrt(3/8)))^2`

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A parallelbeamof lightof intensityI_0is incidentona coatedglassplate. IF25%of theincidentlightis reflected fromthe uppersurfaceand 50 %oflight if reflectedfrom theglassplate, theratioofmaximumtominimumintensityin theinterferenceregionof thereflectedlightis

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