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    Procedure to determine the wavelength of He-Ne laser using single slit diffraction

  • Step 1: Click on the Power Supply to On the laser light.
  • Step 2:Now user will adujust the position of slit as per his/her convienence by just scrolling the sliding bar which would shown on left corner of the experiment.
  • Step 3: User will take reading of position of just drop down the box element. take reading and feed in observation table.
  • Step 4: If the user will pass through a systematic approach then green tick would shown in feeded row.
  • Step 5: Now user can print his/her reading on just click on Print Table.
Determine the wavelength of He-Ne laser using single slit diffraction
He-Ne Laser D = 0 cm d = 3.3 mm 0 mm OFF ON
Observation Table
Slit Width Distance between slit and screen (D) First minima Second Minima Third minima Fourth minima Fill the valaue of mean Wavelength