Physics Topic: Superposition
Explain the meaning of the term diffraction.
Show an understanding of experiments which demonstrate diffraction including the diffraction of water waves in a ripple tank with both a wide gap and a narrow gap.
Show an understanding of the terms interference and coherence.
Show an understanding of experiments which demonstrate two-source interference using water, light and microwaves.
Understand the conditions required if two-source interference fringes are to be observed.
Recall and solve problems using the equation x=D(wavelength)/a for double-slit interference using light.
(For H2 Syllabus only) Recall and solve problems by using the formula dsin(theta)=n x wavelength and describe the use of a diffraction grating to determine the wavelength of light. [The structure and use of the spectrometer is not included.]