QUESTION 4 a) State the principle of superposition. [2 marks] b) A condition for interference between waves from two sou
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QUESTION 4 a) State the principle of superposition. [2 marks] b) A condition for interference between waves from two sou
QUESTION 4 a) State the principle of superposition. [2 marks] b) A condition for interference between waves from two sources is that the sources should be coherent. Explain what is meant by coherent. [2 marks] c) Sketch a graph to show how the variation of intensity in the diffraction pattern formed when mono chromatic light passes through a single narrow slit. [3 marks] d) Describe qualitatively what happens to the diffraction pattern formed in (c) as the width of the slit is reduced. [2 marks]
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