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Wednesday, October 1, 2014

9702 June 2014 Paper 12 Worked Solutions | A-Level Physics

  • 9702 June 2014 Paper 12 Worked Solutions | A-Level Physics


Paper 12


1 C                  11 A                21 C                31 A
2 B                  12 D                22 C                32 A
3 B                  13 A                23 C                33 A
4 C                  14 C                24 C                34 D
5 D                  15 B                25 B                35 B
6 B                  16 B                26 D                36 B
7 C                  17 C                27 D                37 B
8 C                  18 B                28 A                38 C
9 C                  19 D                29 D                39 C
10 B                20 A                30 B                40 C



Notes for some specific questions:

1 - Ans: C. {Detailed explanations for this question is available as Solution 1090 at Physics 9702 Doubts | Help Page 231 - http://physics-ref.blogspot.com/2016/01/physics-9702-doubts-help-page-231.html}


3 - Ans: B.
A cathode-ray oscilloscope (c.r.o.) is connected to an alternating voltage. The following trace is produced on the screen....


4 - Ans: C.
A quantity y is to be determined from the equation shown. The percentage uncertainties in p, x and q are shown.


5 - Ans: D. {Detailed explanations for this question is available as Solution 878 at Physics 9702 Doubts | Help Page 177 - http://physics-ref.blogspot.com/2015/07/physics-9702-doubts-help-page-177.html}


6 - Ans: B. {Detailed explanations for this question is available as Solution 220 at Physics 9702 Doubts | Help Page 35 - http://physics-ref.blogspot.com/2014/12/physics-9702-doubts-help-page-35.html}


7 - Ans: C. {Detailed explanations for this question is available as Solution 193 at Physics 9702 Doubts | Help Page 31 - http://physics-ref.blogspot.com/2014/12/physics-9702-doubts-help-page-31.html}


8 - Ans: C. {Detailed explanations for this question is available as Solution 774 at Physics 9702 Doubts | Help Page 156 - http://physics-ref.blogspot.com/2015/05/physics-9702-doubts-help-page-156.html}


9 - Ans: C. {Detailed explanations for this question is available as Solution 343 at Physics 9702 Doubts | Help Page 60 - http://physics-ref.blogspot.com/2015/02/physics-9702-doubts-help-page-60.html}


10 - Ans: B. {Detailed explanations for this question is available as solution 72 at Physics 9702 Doubts | Help Page 13 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-13.html}


11 - Ans: A. {Detailed explanations for this question is available as Solution 800 at Physics 9702 Doubts | Help Page 161 - http://physics-ref.blogspot.com/2015/06/physics-9702-doubts-help-page-161.html}


12 - Ans: D. {Detailed explanations for this question is available as Solution 222 at Physics 9702 Doubts | Help Page 36 - http://physics-ref.blogspot.com/2014/12/physics-9702-doubts-help-page-36.html}


13 - Ans: A. {Detailed explanations for this question is available as Solution 230 at Physics 9702 Doubts | Help Page 37 - http://physics-ref.blogspot.com/2014/12/physics-9702-doubts-help-page-37.html}



14 – Ans: C. {Detailed explanations for this question is available as Solution 883 at Physics 9702 Doubts | Help Page 179 - http://physics-ref.blogspot.com/2015/07/physics-9702-doubts-help-page-179.html}


15 - Ans: B. {Detailed explanations for this question is available as solution 76 at Physics 9702 Doubts | Help Page 14 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-14.html}



16 – Ans: B. {Detailed explanations for this question is available as Solution 833 at Physics 9702 Doubts | Help Page 166 - http://physics-ref.blogspot.com/2015/06/physics-9702-doubts-help-page-166.html}



18 - Ans: B. {Detailed explanations for this question is available as solution 80 at Physics 9702 Doubts | Help page 15 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-15.html}


19 - Ans: D. {Detailed explanations for this question is available as Solution 293 at Physics 9702 Doubts | Help Page 49 - http://physics-ref.blogspot.com/2015/01/physics-9702-doubts-help-page-49.html}



21 - Ans: C. {Detailed explanations for this question is available as Solution 186 at Physics 9702 Doubts | Help Page 30 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-30.html}



Question 22
What, to two significant figures, are the period, the frequency and the amplitude of the wave represented by the graph? ...



23 - Ans: C. {Detailed explanations for this question is available as solution 86 at Physics 9702 Doubts | Help Page 16 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-16.html}



24 – Ans: C. {Detailed explanations for this question is available as Solution 440 at Physics 9702 Doubts | Help Page 84 - http://physics-ref.blogspot.com/2015/03/physics-9702-doubts-help-page-84.html}


26 - Ans: D. {Detailed explanations for this question is available as Solution 148 at Physics 9702 Doubts | Help Page 26 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-26.html}


27 - Ans: D. {Detailed explanations for this question is available as Solution 167 at Physics 9702 Doubts | Help Page 28 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-28.html}



28 – Ans: A. Field lines are from +ve to –ve. The field lines of each charge will affect each other, so the field lines from the +ve charges is not straight lines here. Additionally, for the 2 +ve charges, the field lines should go in opposite direction (since the like charges repel), unlike ans B.


29 - Ans: D. {Detailed explanations for this question is available as Solution 827 at Physics 9702 Doubts | Help Page 165 - http://physics-ref.blogspot.com/2015/06/physics-9702-doubts-help-page-165.html}


30 - Ans: B. {Detailed explanations for this question is available as solution 90 at Physics 9702 Doubts | Help Page 17 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-17.html}


31 - Ans: A. {Detailed explanations for this question is available as Solution 1034 at Physics 9702 Doubts | Help Page 216 - http://physics-ref.blogspot.com/2015/10/physics-9702-doubts-help-page-216.html}


32 – Ans: A. {Detailed explanations for this question is available as Solution 419 at Physics 9702 Doubts | Help Page 79 - http://physics-ref.blogspot.com/2015/03/physics-9702-doubts-help-page-79.html}


33 - Ans: A. {Detailed explanations for this question is available as Solution 174 at Physics 9702 Doubts | Help Page 29 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-29.html} 


34 - Ans: D. {Detailed explanations for this question is available as Solution 535 at Physics 9702 Doubts | Help Page 104 - http://physics-ref.blogspot.com/2015/04/physics-9702-doubts-help-page-104.html}


 35 - Ans: B. {Detailed explanations for this question is available as solution 96 at Physics 9702 Doubts | Help Page 18 - http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-18.html}
36 – Ans: B. {Detailed explanations for this question is available as Solution 1067 at Physics 9702 Doubts | Help Page 224 - http://physics-ref.blogspot.com/2015/11/physics-9702-doubts-help-page-224.html}


37 - Ans: B. {Detailed explanations for this question is available as Solution 1058 at Physics 9702 Doubts | Help Page 222 - http://physics-ref.blogspot.com/2015/11/physics-9702-doubts-help-page-222.html}


38 - Ans: C.
A nucleus X decays into a nucleus Y by emitting an alpha particle followed by two beta particles.


40 - Ans: C. {Detailed explanations for this question is available as Solution 820 at Physics 9702 Doubts | Help Page 164 - http://physics-ref.blogspot.com/2015/06/physics-9702-doubts-help-page-164.html}



Explanations have been provided for questions that were found to be more difficult. If you are having other doubts that have not been explained here, you may ask your questions through comments. 

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49 comments:

  1. AnonymousNovember 26, 2014 at 5:22 PM

    solution for question 33 please

    ReplyDelete
    Replies
    1. AdminNovember 27, 2014 at 4:58 PM

      The solution for question 33 is now available

      Delete
    2. UnknownNovember 26, 2017 at 4:02 PM

      solution for n12/p11/q13

      Delete
    3. AdminNovember 26, 2017 at 5:03 PM

      See solution 66 at
      http://physics-ref.blogspot.com/2014/11/physics-9702-doubts-help-page-12.html

      Delete
  2. UnknownNovember 27, 2014 at 10:21 AM

    Hi I need help regarding q27... Thanks

    ReplyDelete
  3. AnonymousNovember 27, 2014 at 3:26 PM

    Hi. Could you explain q16. Thank you!

    ReplyDelete
  4. AnonymousDecember 2, 2014 at 2:02 PM

    Q7 please

    ReplyDelete
  5. AnonymousFebruary 4, 2015 at 5:43 PM

    Could you please explain Q9 as well

    ReplyDelete
  6. qdkhanMarch 11, 2015 at 12:25 AM

    in q24, why is the answer not A, why do we have to take into consideration the waveform at an instant after the one shown in picture?

    ReplyDelete
  7. UnknownMarch 19, 2015 at 8:45 PM

    please add this paper november 2012 variant 13

    ReplyDelete
    Replies
    1. AdminApril 18, 2015 at 5:16 PM

      Maybe later. You may ask for specific questions in that variant in the meantime though

      Delete
  8. AnonymousMarch 23, 2015 at 10:17 PM

    q19 plz

    ReplyDelete
  9. Just 'Me'April 3, 2015 at 6:42 PM

    Question 34 please?

    ReplyDelete
  10. anonymousApril 20, 2015 at 4:24 PM

    question 23 of may/june 2013 please

    ReplyDelete
    Replies
    1. AdminApril 21, 2015 at 10:38 AM

      check at
      http://physics-ref.blogspot.com/2014/07/9702-june-2013-paper-12-worked.html

      a list of solved papers is available at
      http://physics-ref.blogspot.com/2014/05/physics-9702-notes-worked-solutions-for.html

      Delete
  11. anonymousApril 20, 2015 at 4:24 PM

    question 20 please of may/june 2013 paper 12

    ReplyDelete
  12. AnonymousMay 28, 2015 at 9:11 PM

    Q.8 please.

    ReplyDelete
  13. AnonymousJune 1, 2015 at 12:44 AM

    Question 11

    ReplyDelete
  14. UnknownJune 5, 2015 at 8:39 PM

    shouldnt 40 be c?

    ReplyDelete
  15. AnonymousJune 5, 2015 at 9:53 PM

    Q5 please?

    ReplyDelete
  16. UmerJune 6, 2015 at 8:52 PM

    Please solve 29

    ReplyDelete
  17. AnonymousJune 10, 2015 at 3:09 AM

    Thank you so much! This site helped me a lot! :)

    ReplyDelete
  18. UnknownOctober 23, 2015 at 11:02 PM

    question 31 pls

    ReplyDelete
  19. UnknownNovember 2, 2015 at 10:29 AM

    Q37 explaination

    ReplyDelete
  20. AnonymousNovember 4, 2015 at 11:23 AM

    Q 36 explain a little more please

    ReplyDelete
  21. UnknownJanuary 3, 2016 at 1:10 PM

    Q1 explaination please

    ReplyDelete
  22. AnonymousJune 7, 2017 at 2:52 PM

    question 3?? I don't get it

    ReplyDelete
  23. AnonymousJune 7, 2017 at 4:23 PM

    question 22 plzz fast

    ReplyDelete
  24. KIMHUATAugust 16, 2018 at 6:40 AM

    For Q38, may I know why "(A) Beta particle decay occurs when a proton changes into a neutron." is incorrect? Thank you!

    ReplyDelete
    Replies
    1. AdminAugust 21, 2018 at 10:45 PM

      details added above

      Delete
    2. KIMHUATAugust 24, 2018 at 5:34 PM

      Thank you for your kind explanation, Sir. So, does that mean that when the question mentions Beta particle, I should assume it's referring to an electron instead of a positron?

      Delete
    3. AdminAugust 24, 2018 at 10:31 PM

      in general, yes. But we should also remember that beta may also be positive at times.

      Delete
    4. KIMHUATAugust 25, 2018 at 7:23 AM

      Thank you, Sir!

      Delete

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