• 9702 June 2013 Paper 23 Worked Solutions | A-Level Physics

Question 1 - See solution 722 at
Two wires each of length l are placed parallel to each other a distance x apart, as shown in Fig.1.





Question 5 - See solution 691 at
Sound waves travel from source S to a point X along two paths SX and SPX, as shown in Fig.1.





Question 6 - See solution 571 at
Battery of electromotive force 20 V and zero internal resistance is connected in series with two resistors R1 and R2, as shown in Fig.1.




Question 7 - See solution 565 at
Two isotopes of uranium are uranium-235 (23592U) and uranium-238 (23892U). (i) Describe in detail an atom of uranium-235.