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{{heureka2|215}}
{{heureka2|215}}


[[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.]]
: <math> tan \alpha _n = \frac{x_n}{l} </math>
: <math> tan \alpha _n = \frac{x_n}{l} </math>
[[File:Double-slit.PNG|thumb|Photons or particles of matter (like an electron) produce a wave pattern when two slits are used]]


: <math> sin \alpha _n = \frac{n \lambda}{d} </math>
: <math> sin \alpha _n = \frac{n \lambda}{d} </math>

Versionen från 6 mars 2015 kl. 12.02

Brytningslagen

NoK Heureka Fysik 2: 191


[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

NoK Heureka Fysik 2: 195


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

NoK Heureka Fysik 2: 199


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

NoK Heureka Fysik 2: 212


[math]\displaystyle{ n_1 = \frac{c}{c_1} }[/math]

Interferens i dubbelspalt

NoK Heureka Fysik 2: 215


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.
[math]\displaystyle{ tan \alpha _n = \frac{x_n}{l} }[/math]


Photons or particles of matter (like an electron) produce a wave pattern when two slits are used
[math]\displaystyle{ sin \alpha _n = \frac{n \lambda}{d} }[/math]

Wikipedia:Double-slit_experiment

Gitter

NoK Heureka Fysik 2: 217


[math]\displaystyle{ n \: \lambda = d \: \sin \: \alpha_n} }[/math]