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Chapter 33: Q. 56 (page 957)

FIGURE P33.56 shows the light intensity on a screen behind a single slit. The slit width is 0.20mmand the screen is 1.5mbehind the slit. What is the wavelength (in nm) of the light?

Short Answer

Expert verified

The wavelength of the light667nm

Step by step solution

01

Central Fringe

Remember that the complete width of a main fringes with in the single study is given by

wc=2位La

In an intellectual result, we are able to resolve parametrically just for the wavelength to search out an answer.

位=awc2L

02

Wavelength

In terms of numbers, our wavelength are going to be

位=2脳10鈭�4m脳1脳10鈭�2cm2mm脳1.5m

=6.6脳10鈭�7m

=667nm

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Most popular questions from this chapter

FIGUREP33.49shows the interference pattern on a screen 1.0mbehind an 800line/mmdiffraction grating. What is the wavelength (in mm) of the light?

FIGUREP33.36shows the light intensity on a screen behind a double slit. The slit spacing is 0.20mmand the screen is 2.0mbehind the slits. What is the wavelength (in nm) of the light?

Two 50-渭m-wide slits spaced 0.25mmapart are illuminated by blue laser light with a wavelength of 450nm. The interference pattern is observed on a screen2.0m behind the slits. How many bright fringes are seen in the central maximum that spans the distance between the first missing order on one side and the first missing order on the other side?

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