Name of the Organisation : National Testing Agency
Name of the Exam : NEET National Eligibility Cum Entrance Test
Document Type : Previous years Exam Papers
Year : 2019
Website : https://nta.ac.in/Downloads
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NEET Previous Year Question Paper
Download the Previous years Exam Papers of NEET National Eligibility Cum Entrance Test from the official website of National Testing Agency.
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1. The Answer Sheet is inside this Test Booklet. When you are directed to open the Test Booklet, take out the Answer Sheet and fill in the particulars on Side-1 and Side-2 carefully with blue/black ball point pen only.
2. The test is of 3 hours duration and this Test Booklet contains 180 questions. Each question carries 4 marks. For each correct response, the candidate will get 4 marks. For each incorrect response, one mark will be deducted from the total scores. The maximum marks are 720.
3. Use Blue/Black Ball Point Pen only for writing particulars on this page/marking responses.
4. Rough work is to be done on the space provided for this purpose in the Test Booklet only.
5. On completion of the test, the candidate must hand over the Answer Sheet to the Invigilator before leaving the Room/Hall. The candidates are allowed to take away this Test Booklet with them.
6. The CODE for this Booklet is AA. Make sure that the CODE printed on Side-2 of the Answer Sheet is the same as that on this Test Booklet. In case of discrepancy, the candidate should immediately report the matter to the Invigilator for replacement of both the Test Booklet and the Answer Sheet.
7. The candidates should ensure that the Answer Sheet is not folded. Do not make any stray marks on the Answer Sheet. Do not write your Roll No. anywhere else except in the specified space in the Test Booklet/Answer Sheet.
8. Use of white fluid for correction is not permissible on the Answer Sheet.
Test Booklet Code : AA
1. The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is
2. The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed organ pipe. If the length of the closed organ pipe is 20 cm, the length of the open organ pipe is
(1) 12·5 cm
(2) 8 cm
(3) 13·2 cm
(4) 16 cm
3. The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is
4. A carbon resistor of (47 ? 4·7) k? is to be marked with rings of different colours for its identification. The colour code sequence will be
(1) Yellow – Green – Violet – Gold
(2) Yellow – Violet – Orange – Silver
(3) Violet – Yellow – Orange – Silver
(4) Green – Orange – Violet – Gold
5. A set of ‘n’ equal resistors, of value ‘R’ each, are connected in series to a battery of emf ‘E’ and internal resistance ‘R’. The current drawn is I. Now, the ‘n’ resistors are connected in parallel to the same battery. Then the current drawn from battery becomes 10 I. The value of ‘n’ is
6. In Young’s double slit experiment the separation d between the slits is 2 mm, the wavelength ? of the light used is 5896 Å and distance D between the screen and slits is 100 cm. It is found that the angular width of the fringes is 0·20?.
To increase the fringe angular width to 0·21? (with same ? and D) the separation between the slits needs to be changed to
(1) 2·1 mm
(2) 1·9 mm
(3) 1·8 mm
(4) 1·7 mm
7. An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of
(1) large focal length and large diameter
(2) large focal length and small diameter
(3) small focal length and large diameter
(4) small focal length and small diameter
8. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is
(1) 2 : – 1
(2) 1 : – 1
(3) 1 : 1
(4) 1 : – 2
9. For a radioactive material, half-life is 10 minutes. If initially there are 600 number of nuclei, the time taken (in minutes) for the disintegration of 450 nuclei is
10. When the light of frequency 2v0 (where v0 is threshold frequency), is incident on a metal plate, the maximum velocity of electrons emitted is v1. When the frequency of the incident radiation is increased to 5v0, the maximum velocity of electrons emitted from the same plate is v2. The ratio of v1 to v2 is
(1) 4 : 1
(2) 1 : 4
(3) 1 : 2
(4) 2 : 1
11. In a p-n junction diode, change in temperature due to heating
(1) does not affect resistance of p-n junction
(2) affects only forward resistance
(3) affects only reverse resistance
(4) affects the overall V – I characteristics of p-n junction
12. An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be
(1) 30 cm towards the mirror
(2) 36 cm away from the mirror
(3) 30 cm away from the mirror
(4) 36 cm towards the mirror
13. The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This inductor is of inductance
(1) 1·389 H
(2) 138·88 H
(3) 0·138 H
(4) 13·89 H
14. An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance h.
The time of fall of the electron, in comparison to the time of fall of the proton is
(1) 10 times greater
(2) 5 times greater
15. The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is
(1) proportional to the square root of the distance between the plates.
(2) linearly proportional to the distance between the plates.
(3) independent of the distance between the plates.
(4) inversely proportional to the distance between the plates.
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Set AA :
16. A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27?C two successive resonances are produced at 20 cm and 73 cm of column length.
If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27?C is
(1) 350 m/s
(2) 339 m/s
(3) 330 m/s
(4) 300 m/s
17. A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy.
The work required to do this comes from
(1) the lattice structure of the material of the rod
(2) the magnetic field
(3) the current source
(4) the induced electric field due to the changing magnetic field
18. Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass M and radius R. They all spin with the same angular speed ? about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation
(1) WB > WA > WC
(2) WA > WB > WC
(3) WC > WB > WA
(4) WA > WC > WB
19. A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be
20. Which one of the following statements is incorrect ?
(1) Frictional force opposes the relative motion.
(2) Limiting value of static friction is directly proportional to normal reaction.
(3) Rolling friction is smaller than sliding friction.
(4) Coefficient of sliding friction has dimensions of length.