{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

13_Ch 24 College Physics ProblemCH24 Wave Optics

# 13_Ch 24 College Physics ProblemCH24 Wave Optics - Wave...

This preview shows page 1. Sign up to view the full content.

Wave Optics 315 24.22 Light reflecting from the lower surface of the air layer experiences phase reversal, but light reflecting from the upper surface of the layer does not. The requirement for a dark fringe (destructive interference) is then 2 n air t m m m n λ λ λ = = = , where 0, 1, 2, m = At the thickest part of the film ( ) 2.00 = m µ t , the order number is ( ) 6 9 2 2.00 10 2 546.1 10 m t m λ × = = × m m 7.32 = 7 Since m must be an integer, = is the order of the last dark fringe seen. Counting the order along the edge of contact, a total of 0 m = 8 dark fringes will be seen. 24.23 With a phase reversal upon reflection from the
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online