contestada

A pair of narrow slits that are 1.8 mm apart is illuminated by a monochromatic coherent light source. A fringe pattern is observed on a screen 4.8 m from the slits. If the wavelength of the monochromatic light is 450 nm, what is the angular separation between adjacent dark fringes on the screen, measured in milliradians?

Respuesta :

Answer:

Angular separation will be 0.250 miliradian

Explanation:

We have given distance between the screen and slits d = 1.8 mm

Wavelength of monochromatic light [tex]\lambda =450nm=450\times 10^{-9}m[/tex]

We have to find the angular separation

We know that angular separation is given by [tex]\Theta =\frac{\lambda }{d}[/tex]

So angular separation will be  

[tex]\Theta =\frac{450\times 10^{-9}}{1.8\times 10^{-3}}=250\times 10^{-6}radian=0.250miliradian[/tex]

So angular separation will be 0.250 miliradian

Otras preguntas