• 9702 November 2015 Paper 23 Worked Solutions | A-Level Physics

Question 2
A signal generator is connected to two loudspeakers L1 and L2, as shown in Fig. 2.1.



Question 3
A steel ball falls from a platform on a tower to the ground below, as shown in Fig. 3.1.



Question 5
The I-V characteristic of a semiconductor diode is shown in Fig. 5.1.



Question 6
An arrangement for producing stationary waves in air in a tube that is closed at one end is shown in Fig. 6.1.



Question 7

A steel wire of cross-sectional area 15 mm2 has an ultimate tensile stress of 4.5 × 108 N m-2.