Light and Relativity Review

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Applications of Light

Single Slit Diffraction

Be able to use the relationship between slit width, wavelength and distance to the screen (or angle, width, wavelength) and fringes

Thin film interference

Be able to locate fringes and distance between fringes base on wavelength and film thickness and index of refraction

Undertsand how film thickness, wavelength and inversions relate to constructive and destructive intereference

understand the significance of inversion at an interface

Waves and Light

Young's Double Slit Experiment

Be able to relate the position of bright fringes of order m to wavelength, path length and distance, d between slits

Be able to relate the position of dark fringes with the angle

Be able to relate the position of bright fringes with the angle

Be able to explain how Young's double slit experiment supports the wave theory of light

Wave-particle duality

Explain how experimental evidence supports the hypothesis that light is a wave or light as a particle eg:: 1. Diffraction 2. refraction

Does the photoelectric effect support the wave-model of light or the particle model of light?

Diffraction and Interference

Be able to locate nodal lines based on the parameters of the experiment (distance between slits d, wavelength etc

Know the importance of 1/2 wavelength path difference in the formation of a nodal line

Understand two source interference

Two sources in phase genereate a diffraction pattern

Diffraction

Undertsand the relationship between frequency/wavelngth and diffraction

Which will diffract more, a 2 cm wave or a 3 cm wave?

Understand the relationship between aperture size and diffraction

wavelength/aperture size ratio

Know what diffraction is.

Refraction and internal reflection

Calculate the critical angle of an interface (eg diamond and air)

Be able to explain dispersion in prisms

Subtopic

Be able to calculate the wavelength of light in a particular material using the wave equation and the index of refraction

Be able to use snell's law

Understand the relationship between index of refraction and light speed for a medium n=c/v

Calculate the wavelngth of 600 nm light in quartz given the index of refraction

Waves

Be able to use the universal wave equation v= f * wavelength to convert from frequency to period and back