   Chapter 27, Problem 19PE

Chapter
Section
Textbook Problem

Using the result of the problem above, calculate the distance between fringes for 633-nm light falling on double slits separated by 0.0800 mm, located 3.00 m from a screen as in Figure 27.56. To determine

The distance between fringes for 633 nm light falling on double slits separated by 0.0800 mm, located 3 m from a screen as shown in figure 27.56.

Explanation

Given info:

Figure shows a double slit located a distance x, from a screen, with the distance from a screen, with the distance from the center of the screen given by y . When the distance d between the slits is relatively large, there will be numerous bright spots.

Formula used:

Δy=xλd

Calculation:

We have, x=3m, λ=633nm, d=0.0800mm.

Substituting these values in above, relation we get

Δλ=3

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