AIPMT 2011 Mains | NEET Year Wise Previous Years Questions

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1. A thermocouple of negligible resistance produces an e.m.f. of 40 µV/ºC in the linear range of temperature. A galvanomete 2. A galvanometer of resistance, G, is shunted by a resistance S ohm. To keep the main current in the circuit unchanged, th 3. A Zener diode, having breakdown voltage equal to 15 V, is used in a voltage regulator circuit shown in figure. The curre 4. Pure Si at 500 K has equal number of electron (ne) and hole (nh) concentrations of 1.5 $$ \times $$ 1016 m$$-$$3. Doping 5. In the following figure, the diodes which are forward biased, are 6. Out of the following which one is not a possible energy for a photon to be emitted by hydrogen atom according to Bohr's 7. An electron in the hydrogen atom jumps from excited state n to the ground state. The wavelength so emitted illuminates a 8. A converging beam of rays is incident on a diverging lens. Having passed through the lens the rays intersect at a point 9. The threshold frequency for a photosensitive metal is 3.3 $$ \times $$ 1014 Hz. If light of frequency 8.2 $$ \times $$ 1 10. A thin prism of angle 15o made of glass of refractive index $$\mu $$1 = 1.5 is combined with another prism of glass of r 11. A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is 12. The r.m.s. value of potential difference V shown in the figure is 13. A square loop, carrying a teady current $$I$$, is placed in a horizontal plane near a long straight conductor carrying a 14. Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency $$f$$ 15. A short bar magnet of magnetic moment 0.4 J T$$-$$1 is placed in a uniform magnetic field of 0.16 T. The magnet is in st 16. In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is 17. Three charges, each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2$$a$$. D and E are t 18. The electric potential V at any point (x, y, z), all in metres in space is given by V = 4x2 volt. The electric field at 19. Two particles are oscillating along two close parallel straight lines side by side, with the same frequency and amplitud 20. A mass of diatomic gas $$(\gamma = 1.4)$$ at a pressure of 2 atmospheres is compressed adiabatically so that its temper 21. Two identical piano wires, kept under the same tension T have a fundamental frequency of 600 Hz. The fractional increase 22. A particle of mass m is thrown upwards from the surface of the earth, with a velocity u. The mass and the radius of the 23. A particle of mass M is situated at the centre of a spherical shell of same mass and radius a. The magnitude of the grav 24. A mass m moving horizontally (along the x-axis) with velocity $$v$$ collides and sticks to a mass of 3m moving verticall 25. A small mass attached to a string rotates on a frictionless table top as shown. If the tension in the string is increase 26. A conveyor belt is moving at a constant speed of 2 ms$$-$$1. A box is gently dropped on it. The coefficient of friction 27. A projectile is fired at an angle of 45o with the horizontal. Elevation angle of the projectile at its highest point as 28. A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed d 29. The density of a material in CGS system of units is 4 g cm$$-$$3. In a system of units in which unit of length is 10 cm

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is connected across the coil, the current in the coil will be

2.0 A

4.0 A

8.0 A

$${{20} \over {\sqrt {13} }}A$$

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

The r.m.s. value of potential difference V shown in the figure is

AIPMT 2011 Mains Physics - Alternating Current Question 49 English

$${{{V_0}} \over {\sqrt 3 }}$$

V₀

$${{{V_0}} \over {\sqrt 2 }}$$

$${{{V_0}} \over 2}$$

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

A square loop, carrying a teady current $$I$$, is placed in a horizontal plane near a long straight conductor carrying a steady current $$I$$₁ at a distance d from the conductor as shown in figure. The loop will experience
AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 55 English

AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 55 English

a net attractive force towards the conductor

a net repulsive force away from the conductor

a net torque acting upward perpendicular to the horizontal plane

a net torque acting downward normal to horizontal plane

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency $$f$$ Hz. The magnitude of magnetic induction at the center of the ring is

$${{{\mu _0}qf} \over {2\pi R}}$$

$${{{\mu _0}qf} \over {2R}}$$

$${{{\mu _0}q} \over {2fR}}$$

$${{{\mu _0}q} \over {2\pi fR}}$$

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