The interference experience is down by two rectangular narrows slits, illuminated by a laser, the distance between the two slits is 1.2 mm and the screen is putted 6 meters away from the slits. We observe on the screen the interference fringes (figure), the distance L between eleven fringes L= 31.5 mm 1) Find is the two narrows slits are vertical or horizontal? 2) It is possible that the source light is polychromatic? 3) Find the wavelength of light source.
The interference experience is down by two rectangular narrows slits, illuminated by a laser, the distance between the two slits is 1.2 mm and the screen is putted 6 meters away from the slits. We observe on the screen the interference fringes (figure), the distance L between eleven fringes L= 31.5 mm 1) Find is the two narrows slits are vertical or horizontal? 2) It is possible that the source light is polychromatic? 3) Find the wavelength of light source.
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Transcribed Image Text:The interference experience is down by two rectangular narrows slits, illuminated by a
laser, the distance between the two slits is 1.2 mm and the screen is putted 6 meters away
from the slits.
We observe on the screen the interference fringes (figure), the distance L between eleven
fringes L= 31.5 mm
1) Find is the two narrows slits are vertical or horizontal?
2) It is possible that the source light is polychromatic?
3) Find the wavelength of light source.
4) If the slits are in 45 degrees of x axis. Draw the observed fringes on the screen.
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