Question

35.60. After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at $\pm 15.0^{\circ}$ with the original direction of the beam, as viewed on a screen far from the slits. (a) What is the ratio of the distance between the slits to the wave- length of the light illuminating the slits? (b) What is the smallest angle, relative to the original direction of the laser beam, at which 2the intensity of the light is $\frac{1}{10}$ the maximum intensity on the screen?

Name: 35.60. After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at ± 15.0^∘ with the original direction of the beam, as viewed on a screen far from the slits. (a) What is the ratio of the distance between the slits to the wave- length of the light illuminating the slits? (b) What is the smallest angle, relative to the original direction of the laser beam, at which 2the intensity of the light is (1)/(10) the maximum intensity on the screen?
Uploaded: 2021-11-28T08:31:50-08:00
Duration: 4 min 16 s
Channel: Ameer Said

          35.60. After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at $\pm 15.0^{\circ}$ with the original direction of the beam, as viewed on a screen far from the slits. (a) What is the ratio of the distance between the slits to the wave- length of the light illuminating the slits? (b) What is the smallest angle, relative to the original direction of the laser beam, at which 2the intensity of the light is $\frac{1}{10}$ the maximum intensity on the screen?

Added by Cory J.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Ameer Said

11/28/2021

Step 1

For the first dark fringe, m = 1. So, we have d*sin(θ) = λ. Show more…

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35.60. After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at $pm 15.0^{circ}$ with the original direction of the beam, as viewed on a screen far from the slits. (a) What is the ratio of the distance between the slits to the wave- length of the light illuminating the slits? (b) What is the smallest angle, relative to the original direction of the laser beam, at which the intensity of the light is $frac{1}{10}$ the maximum intensity on the screen?