Doubt: in wave optics problem of oil film ray going from raretlr to denser medium path distance travelled by reflected second ray comes to be 2 mue ×t × cos r than refracted ray explain how it comes from geometry Chapter: Laws of Motion - Subject: Physics - Course: NEET Course

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in wave optics problem of oil film ray going from raretlr to denser medium path distance travelled by reflected second ray comes to be 2 mue ×t × cos r than refracted ray explain how it comes from geometry

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use this link ...... very well explained...... :-) http://physics.bu.edu/py106/notes/Thinfilm.html

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i opened d link but it is not opening for wave optics questn