AIPMT 2007 | NEET Year Wise Previous Years Questions

Biology

Chemistry

Physics

1. Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of curre 2. A particle moving along x-axis has acceleration f, at time t, given by f = f0$$\left( {1 - {t \over T}} \right),$$ where 3. A car moves from X to Y with a uniform speed vu and returns to Y with a uniform speed vd. The average speed for this rou 4. The positions x of a particle with respect to time t along x-axis is given by x = 9t2 $$-$$ t3 where x is in metres and 5. $$\overrightarrow A $$ and $$\overrightarrow B $$ are two vectors and $$\theta $$ is the angle between them, if $$\left 6. A particle starting from the origin (0, 0) moves in a straight line in the (x, y) planes. Its coordinates at a later tim 7. A block B is pushed momentarily along a horizontaly surface with an initial velocity V. If  $$\mu $$  is the c 8. A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of 9. A particle of mass m moves in the XY plane with a velocity v along the straight line AB. If the angular momentum of the 10. A uniform rod AB of length $$l$$ and mass m is free to rotate about point A. The rod is released from rest in the horizo 11. A wheel has angular acceleration of 3.0 rad/sec2 and an initial angular speed of 2.00 rad/sec. In a time of 2 sec it has 12. Two satellites of earth, S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one 13. Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature toC, the powe 14. A black body is at 727oC. It emits energy at a rate which is proportional to 15. An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62oC, its efficiency is doubled. Temperat 16. A particle executes simple harmonic oscillation with an amplitude $$a$$. The period of oscillation is T. The minimum tim 17. A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass 18. The particle executing simple harmonic motion has a kinetic energy K0cos2$$\omega $$t. The maximum values of the potenti 19. The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion 20. Charges +q and $$-$$q are placed at points A and B respectively which are a distance 2L apart, C is the midnight between 21. A hollow cylinder has a charge q coulomb within it. If $$f$$ is the electric flux in units of voltmeter associated with 22. Three point charges +q, $$-$$ 2q and + q are placed at points (x = 0, y = a, z = 0), (x = 0, y = 0, z = 0) and (x = $$a$ 23. Two condensers, one of capacity C and other of capacity C/2 are connected to a V-volt battery, as shown in the figure. T 24. The total power dissipated in watt in the circuit shown here is 25. Three resistances, P, Q, R each of 2$$\Omega $$ and an unknown resistance S from the four arms of a Wheatstone bridge ci 26. Under the influence of a uniform magnetic field, a charged particle moves with constant speed v in a circle of radius R. 27. The resistance of an ammeter is 13 $$\Omega $$ and its scale is graduated for a current upto 100 amps. After an addition 28. Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature, then 29. A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment $$\ 30. A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 amp, the efficiency 31. What is the value of inductance L for which the current is maximum in a series LCR circuit with C = 10 $$\mu $$F and $$\ 32. The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux $$\phi $$ lin 33. The electric and magnetic field of an electromagnetic wave are 34. A small coin is resting on the bottom of a beaker filled with liquid . A ray of light from the coin travels upto the sur 35. The frequency of a light wave in a material is 2 $$ \times $$ 1014 Hz and wavelength is 5000 $$\mathop A\limits^ \circ 36. Monochromatic light of frequency 6.0 $$ \times $$ 1014 Hz is produced by a laser. The power emitted is 2 $$ \times $$ 10 37. A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field 38. A 5 watt source emits monochromatic light of wavelength 5000 $$\mathop A\limits^ \circ $$. When placed 0.5 m away, it l 39. Two radioactive substances A and B have decay constants 5$$\lambda $$ and $$\lambda $$ respectively. At t = 0 they have 40. In a radioactive decay process, the negatively charged emitted $$\beta $$-particles are 41. In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potentia 42. A nucleus $${}_Z^AX$$ has mass represented by M(A, Z). If Mp and Mn denote the mass of proton and neutron respectively a 43. If the nucleus $${}_{13}^{27}Al$$ has a nuclear radius of about 3.6 fm, them $${}_{32}^{125}Te$$ would have its radius a 44. The total energy of electron in the ground state of hydrogen atom is $$-$$ 13.6 eV. The kinetic energy of an electron in 45. Which one of the following represents forward bias diode ? 46. In the following circuit, the output Y for all possible inputs A and B is expressed by the truth table. 47. For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct ? 48. In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons res

AIPMT 2007

MCQ (Single Correct Answer)

-1

The order of decreasing reactivity towards an electrophilic reagent, for the following would be
(i) benzene
(ii) toluene
(iii) chlorobenzene
(iv) phenol