a. For what visible wavelengths of light do the reflected waves interfere constr

Question

a.For whatvisiblewavelengths of light do the reflected waves interfere constructively?

c ) For whatvisiblewavelengths of light do the reflected waves interfere destructively?

d)What is the color of transmitted light?

A sheet of glass is coated with a 500/rm/rmnm-thick layer of oil (n=1.42). a.For whatvisiblewavelengths of light do the reflected waves interfere constructively? c ) For whatvisiblewavelengths of light do the reflected waves interfere destructively? Enter your answers numerically separated by commas. Enter your answers numerically separated by commas. c) What is the color of reflected light? d)What is the color of transmitted light?

Explanation / Answer

t = 500 nm, n = 1.42

a) 2nt = k

= 2nt/k = 1420/k nm

k = 3, = 473 nm

b) 2nt = (k + 0.5(

= 2nt/(k + 0.5) = 1420/(k + 0.5) nm

k = 2, = 568 nm

k = 3, = 406 nm

c) = 473 nm, blue

d) = 568 nm, yellow; 406 nm, violet

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