1.

At which angle of incidence light reflected fron glass becomes completely plane polarised i At this angle of incidence angle of refraction is 33.6^(@)

Answer»

<P>`90^(@)`
`0^(@)`
`56.4^(@)`
`46.4^(@)`

SOLUTION :`theta_(p)=90^(@)-r`
`=90^(@)-33.6^(@)`
`=56.4^(@)`


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