Light and Relatvitiy
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
