Diffraction due to a narrorw slit

by titan81
Tags: diffraction, narrorw, slit
titan81 is offline
Nov22-10, 03:07 PM
P: 5
1. The problem statement, all variables and given/known data

Light of wavelength 490 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 3.6 m from the slit. The distance on the screen between the central maximum and the third minimum is 2 cm. What is the width of the slit?

2. Relevant equations

3. The attempt at a solution

Not sure where I need to start. Can someone help me out
Phys.Org News Partner Science news on Phys.org
SensaBubble: It's a bubble, but not as we know it (w/ video)
The hemihelix: Scientists discover a new shape using rubber bands (w/ video)
Microbes provide insights into evolution of human language
Stonebridge is offline
Nov23-10, 03:39 AM
P: 649
You should have in your notes or book, a formula ("single slit diffraction")for the angular positions of the various minima. This formula has the width of slit, the wavelength of the light, the number of the minimum counted from the centre, and the sin of the angle.
You can work out the angle from the distances given in the question, so you know all the quantities bar the width of the slit.

Register to reply

Related Discussions
single slit diffraction Introductory Physics Homework 3
PlEASE HELP: Diffraction by a single slit Introductory Physics Homework 3
2 Slit Diffraction Introductory Physics Homework 1