Week 6 Webworks & Lab Report

# Week 6 Webworks & Lab Report - Physics 3LC Week #6:...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Physics 3LC Week #6: Diffraction Webworks Week 6 1. bright spots due to constructive interference of light waves, and dark spots due to destructive interference of light waves 2. a large number of equally spaced parallel or adjacent slits 3. s/L = /d = sd/L s = distance between spots d = how much the lines of grating are separated by L = how far the screen is away 4. s/L = /d sd = L, but and L stay the same so sd = constant s 1 d 1 = s 2 d 2 d 2 = s 1 d 1 /s 2 5. sin = /d = sin-1 (/d) 2Ltan = width of image 6. s/L = /d d = L/s 7. 5.8 m 8. diameter of the pupil 9. = 1.22(/ diameter of transducer) = angle in radians convert angle in radians to degrees by: (# rad)(360 o )/(2 rad) = in degrees tan = x/(total distance traveled) x = (total distance traveled)(tan) 2x = total beam spread 10. x m = /[2(numerical aperture)] 6.2.2. WAVE LENGTH OF LASER Objective : The goal of this lab is to use the equation: d sin n = n to find ( since 0, s / L = / d ). Description : Make one side (the side with the sample holder) of the optical bench one foot from the wall; Place laser beam facing the wall; Place rectangular sample holder at the end of the bench (opposite side of the laser); Place glass diffraction plate in glass holder mounted to carriage located on the bench; Put big slit on left side; Put plate as far away from paper screen; Measure the distance between the plate and the screen (which should be located on the left of the laser and is represented by L ); Adjust laser so that it passes through the slit (second to the bottom); Describe diffraction pattern (show by drawing spots); Measure the distance between spots (calculate the distance between spots); Calculate the wavelength ( )....
View Full Document

## This note was uploaded on 04/08/2008 for the course PHYS 3LC taught by Professor Kiratov during the Fall '07 term at UC Irvine.

### Page1 / 5

Week 6 Webworks & Lab Report - Physics 3LC Week #6:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online