97.29: A student performs an experiment similar to Young’s Doqugguix q/imy:4 h*ml4* it,23wh ik8uble Slit Experiment. Coherent light passes through two narrow slits and produces a pattern of alternating bright and dark lines on a screen. Which of the following would cause the bright lines otiigiiug,q:h42w k4* h*m l8umyq3/x n 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 experiment, second and higher order bright bands ha+ 6;n,tc6w 3sr2z+wjxr :fc*zkn qtcan overlap. Which third order band would occur at the same location as a second ors6+3,kxrfc;n2:t z q awz hntjw*rc+6der band of wavelength 660 nm?

  99.28： In the diagram, which b8ff.og9m. 1jprhui 5of the following would represent a zone or zones of constructive interferen.b u ih1o5j8g9p.frmfce?
(1) from P to A (2) from P to B (3) from P to C

  06.45: In a Young's double-slit exheijp- z 5xc-ke++7 vkuh65seperiment, the slit separation is doubled. To maintain the same fringe spacing on the sc6ek-i5p z7e j-vu5 +hch k+xesreen, the screen-to-slit distance D must be changed to