97.29: A student performs an experiment similar to Young’s Douqugwr 0h +y40hv,cx 7gk,1knuble Slit Experiment. Coherent light passes through two narrow slits and produces a pattern of alternating brh 7 0x+hvqkgwu u,yrng c140,kight and dark lines on a screen. Which of the following would cause the bright lines on the screen to be further apart?
I. Increasing the distance between the slits.
II. Decreasing the distance between the slits.
III. Decreasing the wavelength of the light.

  94.32: In Young’s double slit ex,v 1 ;yut umvj4kjhyymc 4d1fko 5l.kjv,**)iperiment, second and higher order bright bands can overlap. Which third order band would occur at the same location as a second order band of wavelength 660 jjt;ujv*vk, ,4ly*f4mu)y o v1.imyd kc h5k1 nm?

  99.28： In the diagram, which ofo f(p6cjco i:vb, (xk( the following would represent a zone or zones of jfp bcx(o6o,(ivc (k:constructive interference?
(1) from P to A (2) from P to B (3) from P to C

  06.45: In a Young's doublh;i8t e rtn1+-b)+jkl:r+ri v8ovrg pe-slit experiment, the slit separation is doubled. To maintain the same fringe spacing on the scrh b r 1g +rvo)++:tviki8-ejnpr8;ltreen, the screen-to-slit distance D must be changed to