NEET 2017 | NEET Year Wise Previous Years Questions

Biology

Chemistry

Physics

1. A physical quantity of the dimensions of length that can be formed out of c, G and $${{{e^2}} \over {4\pi {\varepsilon _ 2. Preeti reached the metro station and found that the escalator was not working. She walked up the sationary escalator i 3. The x and y coordinates of the particle at any time are x = 5t $$-$$ 2t2 and y = 10t respectively, where x and y are in 4. One end of string of length $$l$$ is connected to a particle of mass 'm' and the other end is connected to a small peg o 5. Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible string. The whole system 6. Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m s$$ 7. Which of the following statements are correct ? (1)   Centre of mass of a body always coincides with the 8. Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the pl 9. A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder 10. The acceleration due to gravity at a height at a height 1 km above the rearth is the same as at a depth d below the surf 11. Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will 12. The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'P', the fractional decrease in r 13. A U tube with both ends open to the atmosphere, is partially filled with water. Oil, which is immiscible with water, is 14. Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and 15. A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temper 16. Thermodynamic processes are indicated in the following diagram. Match the following .tg {border-collapse:collapse;bor 17. A carnot engine having an efficiency of $${1 \over {10}}$$ as heat engine, is used as a refrigerator. If the work done o 18. A gas mixture consists of 2 moles of O2 and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total 19. A spring of force constant k is cut into lengths of ratio 1 : 2 : 3. They are connected in series and the new force cons 20. A particle executes linear simple harmonic motion with an amplitude of 3 cm. When the particle is at 2 cm from the mean 21. The two nearest harmonics of a tube closed at one end and open at other end are 220 Hz and 260 Hz. What is the fundament 22. Two cars moving in opposite directions approach each other with speed of 22 m s$$-$$1 and 16.5 m s$$-$$1 respectively. T 23. Suppose the charge of a proton and an electron differ slightly. One of them is $$-$$e, the other is (e + $$\Delta $$e). 24. A capacitor is charged by a battery. The battery is removed and another identical unchanged capacitor is connected in pa 25. The diagrams below show regions of equipotentials. A positive charge is moved from A to B in each diagram. 26. The resistance of a wire is 'R' ohm. If it is melted and stretched to 'n' times its original length. its new resistance 27. A potentiometer is an accurate and versatile device to make electrical measurements of EMF because the method involves 28. An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current $$'I'$$ alo 29. If $$\theta $$1 and $$\theta $$2 be the apparent angles of dip observed in two vertical planes at right angles to each o 30. A 250-turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 $$\mu $$A and subjected to a magn 31. Figure shows a circuit that contains three identical resistors with resistance R = 9.0 $$\Omega $$ each, two identical i 32. A long solenoid of diameter 0.1 m has 2 $$ \times $$ 104 turns per meter. At the centre of the solenoid, a coil of 100 t 33. In an electromagnetic wave in free space that root mean square value of the electric field is Erms = 6 V m$$-$$1. The pe 34. The ratio of resolving powers of an optical microscope for two wavelength $$\lambda $$1 = 4000 $$\mathop A\limits^ \circ 35. Young's double slit experiment is first performed in air and then in a medium other than air. It is found that 8th brigh 36. A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. Th 37. A thin prism having refracting angle 10o is made of glass of refractive infex 1.42. This prism is combined with another 38. Two polaroids P1 and P2 are placed with their axis perpendicular to each other. Unpolarised light $$I$$0 is incident on 39. The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (kelvin) and mass m, i 40. The photoelectric threshold wavelength of silver is 3250 $$ \times $$ 10$$-$$10 m. The velocity of the electron ejected 41. Radioactive material 'A' has decay constant '8 $$\lambda $$' and material 'B' has decay constant '$$\lambda $$'. Initial 42. The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is 43. Which one of the following represents forward bias diode ? 44. In a common emitter transistor amplifier the audio sgnal voltage across the collector is 3 V. The resistance of collecto 45. The given electrical network is equivalent to

NEET 2017

MCQ (Single Correct Answer)

-1

Predict the correct intermediate and product in the following reaction :

$${H_3}C - C \equiv CH\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{HgS{O_4}}^{{H_2}O,{H_2}S{O_4}}} \mathop {Intermediate}\limits_{(A)} \to \mathop {\Pr oduct}\limits_{(B)} $$