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. A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder 9. Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the pl 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. 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 15. Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and 16. Thermodynamic processes are indicated in the following diagram. Match the following .tg {border-collapse:collapse;bor 17. A gas mixture consists of 2 moles of O2 and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total 18. A carnot engine having an efficiency of $${1 \over {10}}$$ as heat engine, is used as a refrigerator. If the work done o 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. A capacitor is charged by a battery. The battery is removed and another identical unchanged capacitor is connected in pa 24. Suppose the charge of a proton and an electron differ slightly. One of them is $$-$$e, the other is (e + $$\Delta $$e). 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. 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 32. Figure shows a circuit that contains three identical resistors with resistance R = 9.0 $$\Omega $$ each, two identical i 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 $$ 10$$-$$10 m. The velocity of the electron ejected 41. The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is 42. Radioactive material 'A' has decay constant '8 $$\lambda $$' and material 'B' has decay constant '$$\lambda $$'. Initial 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

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 on a smooth horizontal table. If the particle moves in circle with speed '$$\upsilon $$', the net force on the particle (directed towards centre) will be (T represents the tension in the string)

$$T + {{m{v^2}} \over l}$$

$$T - {{m{v^2}} \over l}$$

zero

$$T$$

NEET 2017

MCQ (Single Correct Answer)

-1

Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively

NEET 2017 Physics - Laws of Motion Question 22 English

NEET 2017 Physics - Laws of Motion Question 22 English

$${g \over 3},g$$

$$g, g$$

$${g \over 3},{g \over 3}$$

$$g,{g \over 3}$$

NEET 2017

MCQ (Single Correct Answer)

-1

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^$$-$$1. Take 'g' constant with a value 10 m s^$$-$$2. The work done by the (i) gravitational force and the (ii) resistive force of air is

(i) 1.25 j (ii) $$-$$8.25 J

(i) 100 j (ii) 8.75 J

(i) 10 j (ii) $$-$$8.75 J

(i) $$-$$10 j (ii) $$-$$8.25 J

NEET 2017

MCQ (Single Correct Answer)

-1

Which of the following statements are correct ?

(1)   Centre of mass of a body always coincides with the centre of gravity of the body.

(2)   Centre of mass of a body is the point at which the total gravitational torque on the body is zero.

(3)   A couple on a body produces both translational and rotational motion in a body

(4)   Mechanical advantage greater than one means that small effort can be used to lift a large load.

(1) and (2)

(2) and (3)

(3) and (4)

(4)

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