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Advocard [28]
3 years ago
14

A beam of red light is made to pass through two slits that are 3.55 E-3 meters apart. On a screen 2.25 meters away from the slit

s, an interference pattern appears with bands of light separated by 1.25 E-4 meters. What is the wavelength of the light?
1.97E-7m
0.197m
9.98E.7m
5.07E6m
Physics
1 answer:
JulsSmile [24]3 years ago
7 0
I am assuming you know the relation obtained between slit width, distance of screen from slits, distance of interference pattern obtained on the screen from the center and the wavelength of monochromatic light used in Young's Double Slit experiment.
λ =\frac{y*d}{D} =  \frac{3.55*10^{-3}*1.25*10^{-4}  }{2.25} = 1.97*10^{-7} m
λ ~ 1.97 ×10⁻⁷m
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