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Chapter 33: Q. 31 (page 956)

Moving mirror M2of a Michelson interferometer a distance of 100渭mcauses500bright-dark-bright fringe shifts. What is the wavelength of the light?

Short Answer

Expert verified

Wavelength of the light is400nm

Step by step solution

01

Wavelength

The wavelength of a waveform signal conveyed in space or down a wire is the distance between identical points (consecutive crests) in adjacent cycles.

This length is commonly stated in meters (m), centimeters (cm), or millimeters (mm) in wireless systems (mm).

02

Find Wavelength

The wavelength utilized in the Michelson interferometer experiment can be expressed as

螖m=2螖L位

鈬�位=2螖L螖m

In our numerical example, we have

位=2脳1脳10-4m500

=4脳10-7m

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Most popular questions from this chapter

FIGURE P33.49 shows the interference pattern on a screen 1.0mbehind a diffraction grating. The wavelength of the light is 620nm. How many lines per millimeter does the grating have?

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Light of 630nmwavelength illuminates two slits that are0.25mmapart. FIGURE EX33.5shows the intensity pattern seen on a screen behind the slits. What is the distance to the screen?
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