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Spectrometer Experiment

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Published in: Physics
7,550 Views

Calculation of Refrective Index

Rahul A / Delhi

6 years of teaching experience

Qualification: M.Sc (VNIT NAGPUR - 2018)

Teaches: Mathematics, Physics, B.Sc Tuition, AIEEE, IIT JEE Advanced, IIT JEE Mains

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  1. Visvesvaraya National Institute of Technology, Nagpur (INDIA) SPECTROMETER EXPERIMENT SUBMITTED TO DR.B.R.SANI
  2. N/A
  3. Prism Table
  4. TELESCOPE Ramsden Eye Piece Rack and pinion Screw
  5. COLLIMETER Slit Rack and pinion Screw
  6. PROCEDURE
  7. Step 1 Telescope Adjustment Step 2 Calculating Angle of the prism (A) step 3 Calculating Refractive Index of the prism
  8. STEP 1 TELESCOPE ADJUSTMENT 1- TURN THE TELESCOPE TOWARDS A DISTANT OBJECT AND MOVE THE RACK AND PINION SCREW UNTIL YOU GET THE CLEAR IMAGE OF THE OBJECT. 2- PLACE THE SPECTROMETER IN FRONT OF SODIUM LAMP. ADJUST THE SLIT AS NARROW AS POSSIBLE USING THE SCREW. 3- NOW FOCUS THE TELESCOPE ON THE SLIT AND VERTICAL CROSS WIRE IS COINCIDE WITH THE SLIT. LOCK THE TELESCOPE . 4- NOW ADJUST THE VERNIER SCALE TO 0-0 AND 0-180 AFTER THIS SETUP WE PUT THE PRISM ON THE PRISM 5- TABLE SO THAT THE ROUGH SURFACE OF THE PRISM ON THE SIDE OF TELESCOPE.
  9. STEP 2 DETERMINATION OF ANGLE OF PRISM (A) Collimator
  10. STEP 3 DETERMINATION OF ANGLE OF MINIMUM DEVIATION AND REFRECTIVE INDEX COLLIMATOR 45 84se PRISM TABLE TELESCOPE POSTtON NO. t TELESCOPE NO. 2
  11. FORMULA USED TO CALCULATE THE REFRACTIVE INDEX sin son n=refractive index A= angle of prism D= minimum deviation angle
  12. The refrective index of ordinary ray for qurtz crystal=1.53 The refrective i ndex Of extra ordinary ray for quartz =1.54 THANK YOU

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