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Räkna 11.4-11.7 | |||
[[Image:Single slit and double slit2.jpg|right|350px|thumb|Same double-slit assembly (0.7mm between slits); in top image, one slit is closed. In the single-slit image, a [[diffraction pattern]] (the faint spots on either side of the main band) forms due to the nonzero width of the slit. A diffraction pattern is also seen in the double-slit image, but at twice the intensity and with the addition of many smaller interference fringes.]] | [[Image:Single slit and double slit2.jpg|right|350px|thumb|Same double-slit assembly (0.7mm between slits); in top image, one slit is closed. In the single-slit image, a [[diffraction pattern]] (the faint spots on either side of the main band) forms due to the nonzero width of the slit. A diffraction pattern is also seen in the double-slit image, but at twice the intensity and with the addition of many smaller interference fringes.]] |
Versionen från 6 mars 2015 kl. 12.04
Brytningslagen
- [math]\displaystyle{ n_1 \cdot sin v_1 = n_2 \cdot sin v_2 }[/math]
Räkna
Uppg 10.7-10.12
Brytningsindex för några material
Wikipedia skriver om Brytningsindex
Totalreflektion
Ljus genom det tätare mediet reflekteras i ytan mot det tunnare mediet. Om det är luft fås :
- [math]\displaystyle{ n_1 \cdot sin v_1 = 1.00 \cdot sin 90^o }[/math]
eller helt enkelt:
- [math]\displaystyle{ n_1 \cdot sin v_1 = 1 }[/math]
Räkna
Uppg 10.14-10.16
Newtons avbildningsformel
Lada ner den här GGB och lägg in sträckorna till formeln:
- [math]\displaystyle{ x_o \cdot x_b = f^2 }[/math]
Skriv in förklarande text.
Samband ljushastighet och brytningsindex
- [math]\displaystyle{ n_1 = \frac{c}{c_1} }[/math]
Interferens i dubbelspalt
Räkna 11.4-11.7
- [math]\displaystyle{ tan \alpha _n = \frac{x_n}{l} }[/math]
- [math]\displaystyle{ sin \alpha _n = \frac{n \lambda}{d} }[/math]
Wikipedia:Double-slit_experiment
Gitter
- [math]\displaystyle{ n \: \lambda = d \: \sin \: \alpha_n} }[/math]