Amity International GTSE Class XII Physics & Chemistry Sample Papers : Global Talent Search Examination

Name of the Organisation : AMITY
Name of the Exam : Amity International GTSE Global Talent Search Examination
Document Type : Sample Papers
Class : XII
Subject : Physics & Chemistry
Website : http://www.amity.edu/aice/gtse.aspx

AMITY GTSE Examination Class XII Sample Paper

Question Paper of Amity International Olympiad GTSE Global Talent Search Examination Class XII Physics & Chemistry & Mathematics Question Paper is now available in the official website of AMITY International

Related : AMITY International GTSE Global Talent Search Examination Class XII Biology Question Paper : www.pdfquestion.in/29845.html

General Instructions

1. All questions are compulsory. First 15 minutes for reading instructions.
2. This paper contains 50 objective type questions. Each question or incomplete sentence is followed by four suggested answers or completions. Select the one that is the most appropriate in each case and darken the correct alternative on the given answer-column, with a pencil or pen.

3. For each correct answer 2 marks will be awarded and there is no negative marking.
4. No extra sheet will be provided.
5. Use of calculators & mobile is not permitted in examination hall.
6. Use of unfair means shall invite cancellation of the test

Download Question Paper :
Mathematics: https://www.pdfquestion.in/uploads/GTSEXIIMat.pdf
Phy & Che : https://www.pdfquestion.in/uploads/GTSEXIIPhyche.pdf

Model Questions

Max Marks: 100
Time: 11:30 to 12:45 p.m

Physics

1. In a mass spectrometer, the strength of the magnetic field is 1.0 × 10–1 tesla. Upon entering the chamberof the spectrometer, a positive ion traveling at 2.0 × 106 m/s perpendicular to themagnetic field experiences a magnetic force having a magnitude of 3.2 × 10–14 newton. The charge on this positive ion is
(a) 6.4 × 10–21 C
(b) 6.4 × 10–9 C
(c) 1.6 × 10–19 C
(d) 1.6 × 10–9 C

3. An operating electric motor has a back electromotive force because, in addition to acting as a motor, it acts as
(a) a split-ring commutator
(b) a transformer
(c) an induction coil
(d) a generator

4. The diagram below shows parallel monochromatic incident light rays being reflected from a concave mirror. The mirror fails to produce a sharp focal point as a result of Principal axis
(a) dispersion
(b) diffuse reflection
(c) spherical aberration
(d) chromatic aberration

5. In the given diagram, two resistors and three ammeters connected to a voltage source. The potential difference across the source and the reading of ammeter A1 will be:
(a) 440 V, 10 A
(b) 220 V, 3 A
(c) 120 V, 6 A
(d) 60 V, 4 A

Base your answers to questions 6 through 8 on the diagram below, which shows a nuclear reactor designed to obtain energy in the form of heat from anuclear fission reaction.
6. In the fission reaction 235U 92 + 1 0n = F1 + F2 + 3 1 0n + heat, the fission fragments F1 and F2 might be
(a) 141Ba 56 and 92Kr 36
(b) 131Sb 51 and 41Nb 99
(c) 141Ba 56 and Kr 3 936
(d) 131Sb 51 and 40Nb 99

7. What is the total energy produced by converting 1.0 kilogram of 235U 92 to energy in the reactor?
(a) 9.0 × 1016 J
(b) 9.0 × 108 J
(c) 2.4 × 1016 J
(d) 3.0 × 108 J

8. One of the radioactive waste products of the reactor has a half-life of 250 years. What fraction of a given sample of this product will remain after 1,000 years?
(a) 1/2
(b) 1/8
(c) 1/4
(d) 1/16

9. The water in the reactor acts both as a heat transfer agent and a moderator. In its capacity as a moderator, the water
(a) accelerates the neutrons to higher speeds so that they can interact with nuclei more energetically
(b) slows the neutrons to increase the probability of nuclear interaction
(c) prevents a chain reaction from occurring
(d) absorbs neutrons and slows the nuclear reaction

10. The ammeter in the circuit in figure has a resistance of 24 ?. What is the percent error in the reading of this ammeter ?
(a) 2 %
(b) 4 %
(c) 6 %
(d) none of these

12. The potential difference between A and B of the adjacent network is
(a) zero
(b) 30 V
(c) 70 V
(d) 50 V

13. In a series L, C, R circuit shown below a voltage v = 10 sin (104t + 30º) is applied. What is the voltage across the inductor ?
(a) 10 V
(b) zero
(c) 100 V
(d) none of these

16. In Young’s double slit arrangement, water is filled in the space between screen and slits. Then
(a) fringe pattern shifts upwards but fringe width remains unchanged
(b) fringe width decreases and central bright fringe shifts upwards
(c) fringe width increases and central bright fringe does not shift
(d) fringe width decreases and central bright fringe does not shift.

17. A thin rod of length f /3 lies along the axis of a concave mirror of focal length f. One end of its image touches an end of the rod. The length of the image is:
(a) 2/5 f
(b) 2f
(c) 4/f
(d) 2

19. A hydrogen like atom of atomic number Z is an excited state of quantum number 2n. It can emit a miximumenergy photon of 204 eV. It makes a transition to quantum state n, a photon of energy 40.8 eVis emitted, then
(a) Z = 2
(b) Z = 5
(c) n = 1
(d) n = 2

20. Which statement is wrong for binding energy per nucleon?
(a) Maximum for middle order element.
(b) Minimum for lighter element
(c) Binding energy per nucleon suddenly increases for some mass number called magic number
(d) Binding energy per nucleon is minimum for middle order elements.

22. A particle of mass m and charge q moves with a constant velocity v along the positive x-direction. It enters a region containing a uniform magnetic field B directed along the negative z-direction, extending from x = a to x = b. The minimum value of the v required so that the particle can just enter the region x > b is
(a) qbB/m
(b) qB(b – a)/m
(c) qaB/m
(d) q(b + a)B/2m

23. A diffraction pattern is obtained using a beam of red light. What happens if the red light is replaced by the blue light?
(a) no change
(b) Diffraction bands become narrower and crowded together
(c) Bands become broader and farther apart
(d) Bands disappear

24. An object is located at a distance u to the left of a converging lens 2f > u > f. A plane mirror is placed to the right of lens at a distance d, d > f. Then, which of the following statements is incorrect.
(a) Final image formed by the system is virtual
(b) Image formed by the lens acts as a virtual object for mirror
(c) If a screen is put at I2, no image will be formed on it
(d) Enlarged image is formed at I2.

25. The given combination represents the following gate
(a) XOR
(b) NOR
(c) NAND
(d) OR

Chemistry

31. A gaseous compound A reacts by three independent first order processes (as shown in figure) with rate constant 2 × 10–3, 3 × 10–3 and 1.93 × 10–3 sec–1 for products B, C and D respectively. If initially pureA was taken in a closed container with P = 8 atm, then the partial pressure of B (in atm) after 100 sec form start of experiment
(a) 0.288
(b) 0.577
(c) 1.154
(d) none of these

32. Given the following molar conductivities at 25°C; HCl –426 ?–1 cm2 mol–1; NaCl – 126?–1 cm2 mol–1, NaC (sodium crotonate), 83?–1 cm2 mol–1. What is the ionization constant of crotonic acid? If the conductivity of a 0.001 M crotonic acid solution is 3.83 × 10–5 ?–1 cm–1?
(a) 10–5
(b) 1.11 × 10–5
(c) 1.11 × 10–3
(d) 0.01

33. A 0.10M solution of a monoprotic acid (d = 1.01 g/cm3) is 5% ionized.What is the freezing point of the solution? The mol. wt. of the acid is 300 and Kf (H2O) = 1.86C/m. (a) – 0.186°C (b) – 0.190°C (c) – 0.199°C (d) none of these of 10g AB2 and 14g A2B per 100g of solvent in their respective, solution (AB2 and A2B both are non-electrolytes) is 1 mol/kg in both cases. Hence, atomic wt. of A and B are respectively
(a) 100, 40
(b) 60, 20
(c) 20, 60
(d) none of these

34. When heated above 916°C, iron changes its bcc crystalline form to fcc without the change in the radius of atom. The ratio of density of the crystal before heating and after heating is
(a) 1.069
(b) 0.918
(c) 0.725
(d) 0.231

35. The packing efficiency of a simple cubic crystal with an interestitial atom exactly fitting at the body centre is
(a) 0.48
(b) 0.52
(c) 0.73
(d) 0.91