![]() The refractive index based on the slope of the graph was 1.47, and from the table of data we got an average of 1.44 so all in all, not a bad day’s work. The refractive index of glass is also equal to the average value of.The slope of the line gives a value for the refractive index of glass.A straight line through the origin verifies Snell’s law of refraction Measure the angle of incidence i and angle of refraction r using the protractor.Remove the block and complete all lines including the normal, as indicated on the diagram.Mark two dots on the incident ray and exit ray and draw the outline of the block.Shine a ray of light from the ray-box into the glass block.Place a glass block on the page and mark its outline.TO MEASURE THE REFRACTIVE INDEX OF A GLASS BLOCKĪPPARATUS: Glass block, ray-box, protractor, pageĭIAGRAM (I couldn’t find one which included the ray-box) VERIFICATION OF SNELL’S LAW OF REFRACTION Measurement of the refractive index of a liquid or a solid.Verification of Snell’s law of refraction. ![]() Transmission of light through optical fibres. Relationship between critical angle and refractive index. real and apparent depth of fish in water. Refractive index in terms of relative speeds.ĭemonstration using ray box or laser or other suitable method. Leaving Cert Physics Syllabus: Refraction To verify Snell’s Law and use it to measure the refractive index of a solid. Less interference / boosted less often / cheaper raw material / occupy less space / more information (carried) in the same space / flexible for inaccessible places/ do not corrode ![]() The outer cladding also acts as a protective layer against scratches etc.Īdvantages of optical fibres over copper conductors. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |