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Wednesday, 18 June 2014 10:50

L5-01: OPTICAL BOARD - TOTAL INTERNAL REFLECTION

l5-01a

l5-01b

Additional Info

  • ID Code: L5-01
  • Purpose: Demonstrate total internal reflection and the critical angle.
  • Description:

    Rotate the semicircular slab of plexiglass with the light ray entering and exiting through the curved surface. Starting with the ray incident nearly perpendicular to the flat internal surface, rotate the semicircular slab until the critical point is reached and total internal reflection is obtained. Reflection at entrance can be avoided by having the light enter perpendicular to the surface. A single slit baffle and convex lens are used to produce a narrow ray of light.

    The Brewster angle can also be demonstrated by rotating the semicircular slab so that the transmitted refracted ray and the internally reflected ray are perpendicular. See Demonstration M7-11: OPTICAL BOARD - BREWSTER'S ANGLE.

  • Availability: Available
Read 755 times Last modified on Monday, 18 August 2014 14:48
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