5. Using the two-dimensional wave interference pattern shown, a student makes the following measurements (note that diagram may no be to scale when printed). (8 marks) S. For the point on the second notal line (n=2), P₂S₁ P2S₂ 37 mm = 46 mm For the point on the first anti-nodal line (m = 1), P₁S₁ P₁S₂ = 41 mm = 35 mm a) Calculate the wavelength based on measurements for the point on the second nodal line. Calculate the wavelength based on measurements for the point on the first anti-nodal line. c) What effect would an increase in frequency have on the interference pattern? b) d) What effect would a decrease in the distance between the wave sources have on the interference pattern?

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5. Using the two-dimensional wave interference pattern shown, a student makes the following measurements (note that diagram may no be to scale when printed). (8 marks) S. For the point on the second notal line (n=2), P₂S₁ P2S₂ 37 mm = 46 mm For the point on the first anti-nodal line (m = 1), P₁S₁ P₁S₂ = 41 mm = 35 mm a