• 9702 November 2015 Paper 11 Worked Solutions | A-Level Physics

1 B                  11 A                21 B                31 C

2 B                  12 D                22 A                32 A

3 A                  13 C                23 B                33 B

4 A                  14 A                24 C                34 C

5 B                  15 B                25 A                35 A

6 C                  16 D                26 A                36 A

7 C                  17 B                27 D                37 D

8 B                  18 D                28 A                38 D

9 D                  19 D                29 B                39 D

10 D                20 B                30 A                40 B

5 - Ans: B.
Four identical rods have a square cross-section. The rods are placed side by side and their total width is measured with vernier calipers, as shown.



11 - Ans: A.
A glider of mass 1500 kg is launched from rest on a straight and level track using a catapult.


14 - Ans: A.
Two blocks X and Y are falling through a vacuum in a uniform gravitational field, as shown.


15 - Ans: B.
A gas is contained inside a sealed syringe, as shown.


16 - Ans: D.
A combined heat and power (CHP) station generates electrical power and useful heat. The diagram shows the input and output for a CHP station.


19 - Ans: D.
A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end.

23 - Ans: B.

A wire has a final length of 6.0 m after undergoing a strain of 200%. What is the original length of the wire?

30 - Ans: A.
Three parallel metal plates of the same area are fixed with a separation of 2.0 cm between the top plate and the centre plate, and 1.0 cm between the centre plate and the bottom plate.


31 - Ans: C.
The diagram shows a graph. For a uniform metallic wire, what could the graph not represent?


33 - Ans: B.
The Atlantic torpedo is a large electric fish capable of generating a voltage of 220 V between its tail and its head.


35 - Ans: A.
A 110 V d.c. supply is connected to a heater, a fuse and a switch, as shown. Owing to a fault in the system, power is not supplied to the heater. A technician diagnoses the fault using a voltmeter.