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Download CSIR UGC NET, 2015 December 20, Question, Detailed Answer Key, Key, Answers, solutions, Explanations, Comment Here

► Download CSIR UGC NET, 2015 December 20, Question, Detailed Answer Key, Key, Answers, solutions, Explanations, Comment Here

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UGC CSIR NET 2015 December 20 Physics Answer Key Comment here with explanation
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  1. This comment has been removed by the author.

  2. The answer for the 21st question in Part B in "B" booklet series is option 1. w is proportional to R

  3. The answer for the 21st question in Part B is option 1. w is directly proportional to R

  4. No ans of Simpson ruke is .565 first option

  5. This comment has been removed by the author.

  6. booklet C q no 22 option 4 is correct

  7. bird leaves a nest- Option 3.

  8. Scattering cross section dimensional analysis- Option 3.

  9. also upload chemistry paper

  10. section A(booklet B) please verify these answers and please discuss about part B and C of Booklet B

    1. please mention the question in shorcut for all the answers. I have C-Set so how I'll compare my answer with yours?

    2. Correct am also have A boklt pls mention d qns

  11. Booklet C Answers

  12. Yes for Simpson's 1/3 rule answer is 0.565

  13. Booklet code C

    Part B :
    Q 21: 3 Fourier transform of delta function

    Q 23: 2
    Q 24: 2
    Q 25: 3
    Q 26: 1 Some doubt about this ans

    Q 32: 4

    Q 35: 1
    Q 36: 2
    Q 37: 2

    # Part C
    Q 46: 4
    Q 51: 1 Simpson rule
    Q 53: 4
    Q 56: 1
    Q 61: 2 energy correction
    Q 66: 1 some doubt
    Q 74: 2

    1. 46 : 3 should be answer

    2. Q 32: 2 is the right ans

    3. Are you sure about question number 61 answer is A????

    4. What is 73rd question answer, booklet C???


    5. Q 61 : 1 is right answer (energy correction)

    6. Q : 73 (booklet c) 3 is right answer

    7. What about the answer for 41 and 28 question booklet C???

  14. plz write some details of questions so that each would understand the question rather saying the set no. and ques no.

  15. Q21 has ill defined integrals if f(x) is chosen to be proportional to Dirac delta. It is well known that Dirac Delta is defined only for "test functions" that are smooth and have a well defined norm. Carelessness on the part of question setters.

  16. canonical transformation and generating function answer is last graph i.e straight line. Q(t) graph

  17. part A- Booklet C
    Q3. 3 (bucket problem)
    Q7. 4 (Area of region closed bet circles)
    Q8. 4 (Hidden number arrange in ascending order)
    Q9. 2 (Shopkeeper makes)
    Q11.1 (Number of Squares)
    12. 4 (graph question, Variation of total volume of water with time t)
    13. 3 (Bird leaves nest)
    17. 4 (Turtle question)
    20. 4 (Triangle formed by lines y=x, y=1-x and x=0)

    1. In Q 12 it should be option 2 as the bucket is partially at t=0, V has somevalue

  18. Booklet code B.

    part .B

    Q 24: 3

    Q 25 :3

    Q 25 :1

    Q 27 :3

    Q 28 :4

    Q 30 :4

    Q 32 :2

    Q 36 :1

  19. I think question no 20 (y=x problem) ans is 1

  20. What is the expected cutoff this time???

  21. y=log(x) the opamp circuit is option 2

  22. booklet C Q no 71, A thin metal film....Ans is option 3

  23. booklet C 71 answer is 3

  24. What about the question in part b about specific heat with options 16/25 kB , 8/25 kB and all

  25. what about q.46 of booklet A..PLZ ans me

  26. 1. A shopkeeper purchases a product for Rs.100 and sells it making a profit of 10%. The customer resells it to the same shopkeeper incurring a loss of 10%. In these dealings the shopkeeper makes
    (2) Rs.11

    2. A vessel is partially filled with water. More water is added to it at a rate directly proportional to time [dV/dt α t]. Which of the following graphs depicts correctly the variation of total volume V of water with time t?
    Answer: Graph 2

    3. The triangle formed by the lines y = x, y = 1- x and x = 0 in a two dimensional plane is (x and y axes have the same scale)
    (2) isosceles but not right-angled

    Statement A. The following statement is true
    Statement B. The preceding statement is false.

    Choose the correct inference from the following:
    (3) Statements A and B can be true if there are at least two statements between A and B


    The number of squares in the above figure is
    (2) 29

    6. A person walks downhill at 10 km/h, uphill at 6 km/h and on the plane at 7.5 km/h. If the person takes 3 hours to go from a place A to another place B, and 1 hour on the way back, the distance between A and B is
    (4) Given data is insufficient to calculate the distance.

    7. A bird leaves its nest and flies away. Its distance x from the nest is plotted as a function of time t. Which of the following plots cannot be right?
    Answer 3

    8. A car is moving at 60 km/h. The instantaneous velocity of the upper most points of its wheels is
    (2) 120 km/h forward

    9. A living cell has a protoplasm which is water based and demarcated by a lipid bilayer membrane. If a cell is pierced up to 1/5th of its diameter with a very sharp needle, after taking the needle out
    (1) no effect will be observed.

    10. If D + 1+ M = 1501
    L+ 1+ V + I + D= 557
    C+I + v+ I +C=207
    What is V+I+M= ?
    (3) 1006

    1. How do you get this ? Can you please show the steps to derive this one ?

  27. 11. Density of a rice grain is 1.5 g/cc and bulk density of rice heap is 0.80 g/cc. If a 1 litre container is completely filled with rice, what will be the approximate volume of pore space in the container?
    (2) 465 cc

    12. Four circles of unit radius each are drawn such that each one touches two others and their centres lie on the vertices of a square. The area of the region enclosed between the circles is
    (4) 4-π

    13. A turtle starts swimming from a point A located on the circumference of a circular pond. After swimming for 4 meters in a straight line it hits point B on the circumference of the pond. From there it changes direction and swims for 3 meters in a straight line and arrives at point D diametrically opposite to point A. How far is point D from A?
    (4) 5m

    14. A film projector and microscope give equal magnification. But a film projector is not used to see living cells because

    (4) a microscope has greater resolving power than a projector.

    15. In each of the following groups of words is a hidden number, based on which you should arrange them in descending order.

    Pick the correct answer:
    E. Papers I Xeroxed
    F. Wi-Fi veteran
    G. Yourself ourselves
    H. Breaks even
    (4) H, E, F, G

    16. Five congruent rectangles are drawn inside a big rectangle of perimeter 165 as shown. What is the perimeter of one of the five rectangles?
    (2) 75

    17. At one instant, the hour hand and the minute hand of a clock are one over the other in between the markings for 5 and 6 on the dial. At this instant, the tip of the minute hand

    (3) is closer to marking for 5

    18. A cubical cardboard box made of 1 cm thick card board has outer side of 29 cm. A tight-filling cubical box of the same thickness is placed inside it, then another one inside it and so on. How many cubical boxes will be there in the entire set?
    (3) 15

    19. There are two buckets A and B. Initially A has 2 litres of water and B is empty. At every hour 1 litre of water is transferred from A to B followed by returning ½ litre back to A from B half an hour later. The earliest A will get empty is in:
    (3) 3 h

    20. Secondary colours are made by a mixture of three primary colours, Red, Green and Blue, in different proportions; each of the primary colours comes in 8 possible levels. Grey corresponds to equal proportions of Red, Green and Blue. How many shades of grey exist in this scheme?
    (1) 8^3

  28. Sir,Kindly upload chemistry paper also

  29. Council of Scientific and Industrial Research
    Human Resource Development Group
    Display of Answer Keys of Joint CSIR- UGC JRF-NET EXAM held on 20th December, 2015
    All the candidates who have appeared in CSIR-NET December-2015 examination held on 20/12/2015 are informed that the answer keys of all the subjects will be available on CSIR, HRDG website from 18/01/2016 to 22/01/2016 to ensure transparency in our examination process. The candidates are allowed to send the representations of the answer keys of all the subjects through email only latest by 22/01/2016. Candidates are advised to read instructions for sending representation available on our website The representations received on email after the stipulated date or without any documentary/textual support, shall not be entertained. The observations submitted by post or in person will not be accepted. All the representations in a consolidated form, if any, will be given due consideration by the experts whose decision will be final, if the representation is accepted by the subject experts in answer key, a policy decision will be taken and the same will be reflected in the result. Final Answer Key of all the subjects shall be displayed on our website in due course of time. The CSIR’s decision on the representation shall be final and no further representation will be entertained on Final keys thereafter.
    Deputy Secretary [Examination]


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