Quiz_23b - the dark fringes Since the condition for a dark...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 241 –Quiz 23b – April 22, 2008 a) Increasing slit separation b) Moving the screen closer to the slits c) Reducing the wavelength of light d) Submerging the entire apparatus in water (assuming that the experiment can still be performed properly in water) e) None of the above In Young’s two-slit interference experiment, which of the following will increase the spacing between
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the dark fringes? Since the condition for a dark fringe is d sin θ m = (m+1/2) λ , in order to increase the fringe separation, you must move the screen further from the slits or increase − m-1 . To do the latter, you must either decrease d or increase . Submerging the apparatus in water has the effect of changing to /1.33, and thus it decreases instead....
View Full Document

This note was uploaded on 07/29/2008 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue.

Ask a homework question - tutors are online