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SELF-ASSESSMENT CHECKLIST

I am able to ... | Section | Not yet | Nearly there | Ready to move on
understand refraction using wavefronts and rays | 14.1 |  |  |
understand and apply the principle of superposition | 14.2 |  |  |
understand the meaning of diffraction and the role of the wavelength | 14.3 |  |  |
understand what is meant by interference | 14.3 |  |  |
solve interference problems with two sources | 14.3 |  |  |
draw the single slit diffraction pattern | 14.4 |  |  |
calculate the angle of the first minimum of the single slit diffraction pattern | 14.4 |  |  |
understand the effect of single slit diffraction of the two-slit interference pattern | 14.4 |  |  |
explain qualitatively what happens when the number of slits increases | 14.5 |  |  |
solve problems with the diffraction grating equation | 14.5 |  |  |

REFLECTION

Can you describe a wave through wavefronts and rays? Do you know how to apply Snell’s law? Do you understand what is meant by superposition and do you know how to apply it? Do you understand what is meant by diffraction and interference? Do you understand the concept of path difference? Can you solve problems with two-slit interference?

Do you understand single slit diffraction? Can you describe the effect of slit width on the two slit interference pattern? Can you describe the effect of increasing the number of slits? Can you solve problems on the diffraction grating?

Exam-style Questions

You can find questions in the style of IB exams in the digital coursebook.