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Question: 

How far apart are the dark bands in Example 24–10 if the glass plates are each 21.5 cm long? (Note: the wire separating the plates is $7.35 \times 10^{–3} \textrm{ mm}$ and the light has a wavelength of $600 \textrm{ nm}$).

Light rays reflected from the upper and lower surfaces of a thin wedge of air (between two glass plates) interfere to produce bright and dark bands.

Figure 24-33 (a) Light rays reflected from the upper and lower surfaces of a thin wedge of air (between two glass plates) interfere to produce bright and dark bands.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

0.878 cm/interval

Giancoli 7th Edition, Chapter 24, Problem 45

(3:43)

Chapter 24, Problem 45 is solved.

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