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TESTING INVESTIGATION AND PREDICTION CHALLENGE: DIFFRACTION GRATING
GIVEN: Diffraction grating slide, green laser (532 nm), red laser (635 nm), meterstick
TASKS:
a. Determine the separation of the grating
b. Predict the separation of the fringes when using the red laser.
POSTER: Derivation of equations.
EXTENSION ACTIVITY 1.
Determine the width of a human hair.
EXTENSION ACTIVITY 2.
DNA Science: Modeling Rosalind Franklin’s Discovery with a Pen Spring
AP PHYSICS 2
Essential Knowledge 6.C.2:
When waves pass through an opening whose dimensions are comparable to the wavelength, a diffraction pattern can be observed.
- LO 6.C.2.1: The student is able to make claims about the diffraction pattern produced when a wave passes through a small opening, and to qualitatively apply the wave model to quantities that describe the generation of a diffraction pattern when a wave passes through an opening whose dimensions are comparable to the wavelength of the wave. [SP 1.4, 6.4, 7.2]
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