4.2 Intensity in Single-Slit Diffraction

Phasor addition across the slit width yielding the intensity profile, and how bright each secondary peak is relative to the central maximum.

University Physics Volume 3, 4.2 Intensity in Single-Slit Diffraction

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4 exercises

4.2 Exercise 1

For the experiment in the example, at what angle from the center is the third maximum and what is its intensity relative to the central maximum?

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4.2 Exercise 2

In the equation, the parameter $\beta$ looks like an angle but is not an angle that you can measure with a protractor in the physical world. Explain what $\beta$ represents.

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4.2 Exercise 4

A single slit of width 0.1 mm is illuminated by a mercury light of wavelength 576 nm. Find the intensity at a $10 °$ angle to the axis in terms of the intensity of the central maximum.

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4.2 Exercise 6

Consider the single-slit diffraction pattern for $\lambda = 600 \text{nm}$ , $a = 0.025 \text{mm}$ , and $x = 2.0 \text{m}$ . Find the intensity in terms of $I_{o}$ at $\theta = 0.5 °$ , $1.0 °$ , $1.5 °$ , $3.0 °$ , and $10.0 °$ .

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