9702 June 2017 Paper 22 Worked Solution | A-Level Physics
Question 1
A wire of cross-sectional area 1.5 mm2 and length 2.5 m has a resistance of 0.030 Ω. Calculate the resistivity of the material of the wire in nΩ m.
Question 6
Interference fringes may be observed using a light-emitting laser to illuminate a double slit. The double slit acts as two sources of light.
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