9702 June 2015 Paper 13 Worked Solutions | A-Level Physics
1 - Ans: C.
Which statement includes a correct unit? A energy = 7.8 N s
3 - Ans: D. See solution 976 at
The speed of an aeroplane in still air is 200 km h–1. The wind blows from the west at a speed of 85.0 km h–1.
12 - Ans: B. See solution 1010 at
Two balls X and Y are moving towards each other with speeds of 5 m s–1 and 15 m s–1 respectively.
13 - Ans: C. See solution 996 at
14 - Ans: A.
Four cuboids with identical length, breadth and height are immersed in water.
15 - Ans: A.
An air bubble in a tank of water is rising with constant velocity. The forces acting on the bubble are X, Y and Z as shown.
17 - Ans: A.
The gas in an engine does work on a piston of cross-sectional area 80 cm2. The pressure on the piston has a constant value of 4.6 × 105 Pa.
18 - Ans: C.
A loaded aeroplane has a total mass of 1.2×105 kg while climbing after take-off. It climbs at an angle of 23°to the horizontal with a speed of 50 m s–1.
21 - Ans: B. See solution 1002 at
A W-shaped tube contains two amounts of mercury, each open to the atmosphere. Air at pressure P is trapped in between them.
26 - Ans: D. See solution 1014 at
A wave pulse moves along a stretched rope in the direction shown.
29 - Ans: C. See solution 1037 at
Wave generators at points X and Y produce water waves of the same wavelength. At point Z, the waves from X have the same amplitude as the waves from Y.
30 - Ans: B.
A molecule behaves as an electric dipole consisting of two equal point charges, of opposite sign, separated by a fixed distance.
34 - Ans: C.
A simple circuit is formed by connecting a resistor of resistance R between the terminals of a battery of electromotive force (e.m.f.) 9.0 V and constant internal resistance r.
36 - Ans: A. See solution 1007 at
A box with four terminals P, Q, R and S contains two identical resistors. When a battery of electromotive force (e.m.f.) E and negligible internal resistance is connected across PS, a high-resistance voltmeter connected across QR reads E/2.
37 - Ans: C.
The diagram shows part of a current-carrying circuit. The ammeter has negligible resistance.
Explain Question number 19 please
ReplyDeletethis is similar to question 891 at
Deletehttp://physics-ref.blogspot.com/2015/07/physics-9702-doubts-help-page-181.html
explain question 1 please
ReplyDeleteexplanation added
Deleteexplain question 37 please
ReplyDeletesolution added
DeleteExplain question 18 please
Deleteadded
Deleteexplain question 30 pls for this variant
ReplyDeleteExplain Q15 plz
DeleteQ15 has been added
Deletequestion 17 plz
ReplyDeleteExplain Question 34 Please
ReplyDeleteadded
Deleteif u compare the mark scheme there r so many wrong answers
ReplyDeletethis is variant 13.
DeleteMay be you are looking at the wrong variant in the mark scheme
Question 14 please
ReplyDeleteq14 added
Delete