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Old May 29th, 2013, 11:16 AM
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Default IIT Sample Papers Download

I am searching for IIT JEE question paper so from which source can I get it?
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Old May 29th, 2013, 05:20 PM
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Default Re: IIT Sample Papers Download

you are looking for IIT JEE Question paper so I have and I am giving you:

1. In the determination of Young’s modulus 2
4MLg
Y
d
= p l
by using Searle’s method, a wire of length L = 2m
and diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension l = 0.25 mm in the length of the wire
is observed. Quantities d and l are measured using a screw gauge and a micrometer, respectively. They
have the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions to
the maximum probable error of the Y measurement
(A) due to the errors in the measurements of d and l are the same.
(B) due to the error in the measurement of d is twice that due to the error in the measurement of l.
(C) due to the error in the measurement of l is twice that due to the error in the measurement of d.
(D) due to the error in the measurement of d is four times that due to the error in the measurement of l.


2. A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The
mass is undergoing circular motion in the x-y plane with centre at O and constant angular speed w. If the
angular momentum of the system, calculated about O and P are denoted by O L r and P L r respectively,

complete paper is in attached pdf file. Feel free to download it:


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I am searching for IIT JEE question paper so from which source can I get it?
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  #3  
Old December 25th, 2014, 04:02 PM
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Default Re: IIT Sample Papers Download

As you want to get IIT JEE question paper so here I am giving you same:

1. N molecules each of mass m and v velocity collides with a wall of a container and
then absorbed, the pressure applied on the wall is :
(1) mNV2 (2) mNV2 (3) 2 mNV2 (4) mNV2
3 2
2. The law of far a day is obtained by conservation of :
(1) Charge (2) Energy (3) Energy and magnetic field (4) Magnetic field
3. There is a q charge placed in the centre of a cube, then the emergent flux is :
(1) q (2) q (3) q (4) q_
6∈0 8 ∈0 2 ∈0 ∈0
4. Two thin lenses are put close to each other, focal length of the combination is :
(1) less than the small focal length
(2) more than the bigger focal length
(3) equal to the arithmetical average of the focal length
(4) equal to the geometrical average of the focal length
5. A car is moving on a horizontal circular path with 10 m/s constant speed. A rigid
body is suspended from ceiling of car with a 1 m. long light rod, the angle between
rod and path is :
(1) 600 (2) 450 (3) 300 (4) zero
6. Two sources of E1 and E2 emf r1 and r2 internal, resistances, are connected in the
parallel combination, the emf of the combination is :
(1) E1E2 (2) E2r1 + E1r2 (3) E1r1 + E2r2 (4) E1 + E2
E1+E2 r1 + r2 r1 + r2 2
7. In a AC circuit R = 0 ΩΩ, XL = 8ΩΩand XC = 6ΩΩphase difference between voltage
and current is :
(1) 110 (2) 450 (3) 370(4) 120
8. Relative permeability of a medium is r and relative permittivity is ∈∈∈r then the
velocity of an electro magnetic wave is :
(1) c (2) √∈rr (3) √0t0 (4) 1
∈00 r∈r r∈r
√ r∈r
9. Ration of radius of two soap bubbles is 2 : 1 then the ratio of their excess
pressure is :
(1) 2 : 1 (2) 4 : 1 (3) 1 : 4 (4) 1: 2
10. Ratio of sound velocities is H2 and O2 will be :
(1) 32 : 1 (2) 1 : 4 (3) 16 : 1 (4) 4 : 1
11. In which of the waves the energy is not propagated :
(1) em waves
(2) longitudional waves
(3) stationary waves
(4) transverse waves
12. A body of 2 kg. mass is moving under a force, relation between time and
displacement is x = t3 where x in meter and t in time work done in first two seconds
is : 3
(1) 1.6 J (2) 16 J (3) 160 J (4) 1600 J
13. A uniform chain of L length and M mass, two third part of chain is on a
frictionless table and one third part is vertically suspended, work done to pull the
whole chain on table, is :
(1) MgL (2) MgL (3) MgL (4) MgL
18 9 6 3
14. If the intensity and frequency of incident light is doubled then :
(1) photo electric current will become is times
(2) kinetic energy of the emitted electron will be increased and current will be 2 times
(3) kinetic energy of electrons will be 4 times
(4) the kinetic energy of electrons will be 2 times
15. A car travels half distance with 40 kmph and rest half distance with 60 kmph
then the average speed of car is :
(1) 60 kmph (2) 52 kmph (3) 48 kmph (4) 40 kmph
16. Two particle are moving with same velocities in the circular paths of r1 and r2
radius then the ratio of their centripetal forces is :
(1) r2 (2) r2 (3) r1 2 (4) r2 2
r1 √ r1 r2 r1
17. No. of electrons in the 92 U 235 nucleus is :
(1) 143 (2) 235 (3) 92 (4) zero
18. The wavelength of photon and electron is ph and e and energy (E) of the two is
same then :
(1) the difference can be obtain if E is given
(2) e>ph
(3) ph . e
(4) ph=e
19. A lift is moving with acceleration a in upward direction then the force applied by
mass m on the floor of lift will be :
(1) ma (2) m(g-a) (3) m(g+a) (4) mg
20. Two cars of m1 and m2 mass are moving in the circular paths of r1 and r2 radius,
their speed is such that they travels one cycle in the same time, the ratio of their
angular velocities is :
(1) m1r1 : m2r2 (2) 1 : 1 (3) r1 : r2 (4) m1 : m2
21. A ring of mass M, radius r is moving with angular velocity w, if another two
bodies each of mass m is placed on its diameter, the resultant angular velocity will
be :
(1) w(M + 2m) (2) w(M – 2m) (3) wM (4) wM
M (M + 2m) (m+m) (M+2m)
22. The wavelength of 1 ke V photon 1.25 x 10-9 m the frequency of Me V photon
will be:
(1) 1.24 x 1023 (2) 2.4 x 1023 (3) 2.4 x 1023 (4) 1.24 x 1015
23. Size of nucleusis of the order of :
(1) 10-13 cm (2) 10-10 cm. (3) 10-8 cm. (4) 10-15 cm.

25. In a uniform circular motion :
(1) both acceleration and speed changes
(2) both acceleration and speed are constant
(3) both acceleration and velocity are constant
(4) both acceleration and velocity changes
26. Ratio of average kinetic evergies of H2 and O2 at a given temp. is :
(1) 1 : 1 (2) 1 : 4 (3) 1 : 8 (4) 1 : 16
27. To make the working of a machine, free of magnetism, the cover of this machine
must be of :
(1) non magnetic substance
(2) diamagnetic substance
(3) paramagnetic substance
(4) ferro magnetic substance

29. Angular momentum of electron of H atom is proportional to :
(1) 1 (2) 1 (3) √r (4) r2
r √ r
30. MI, rotational kinetic energy and angular momentum of a body is I, E and L
then :
(1) E= L2 (2) E2= 2I (3) E = 2IL (4) L = E2
2I L 2I
31. In a diode value, the state of saturation can be obtained easily by :
(1) high plate voltage and high filament
(2) low filament current and high plate voltage
(3) low plate voltage and high plate tem
(4) high filament current and high plate voltage
32. A magnet is dropped in a long coppertube vertically, the acceleration of magnet :
(1) equal to g (2) less than g (3) zero (4) greater than g
33. Joule-second is unit of :
(1) rotational power
(2) angular momentum
(3) rotational energy
(4) torgue
34. A 3 coulomb charge enerts 3000 N force in a uniform electrical field, the
distance between two points is 1 cm. potential difference will be :
(1) 9000 V (2) 1000 V (3) 90 V (4) 10 V
35. 1000 drops, each v volt, are combined to form a big drop, then the potential of
the drop will be how many times :
(1) 1 (2) 10 (3) 100 (4) 1000
36. A plane is revoloving around the earth with 100 km./hr. speed at a earth, the
changes in the velocity as it travels half circle is :
(1) 100 √2 kmph (2) 150 kmph (3) 200 kmph (4) zero
37. 3 x 107 kg. water is initially constant and it is displaced 3 m. by applying 5 x 104
N force. Velocity of water will be (if resistance of water is zero) :
(1) 50 m/sec. (2) 0 1 m/sec. (3) 60 m/sec. (4) 1.5 m/sec.
38. In a wheat stone circuit P = Q = 10Ωand R = S = 15 Ωand G = 20 Ω. If a cell of 1.5
volt emf is used, the current drawn from the cell is :
(1) 0.021 amp (2) 0.025 amp (3) 0.060 amp (4) 0.125 amp
39. Two waves of same frequency and different amplitude, if the phase difference is /2
then the Lissajou’s figure will be :
(1) 8 shape (2) an ellipse (3) a circle (4) a straight line
40. A monoatomic gas (r = 5/3) and a diatomic gas (r= 7/5) are mixed in equal ratio then
the r of mixture will be :
(1) 3.07 (2) 1.53 (3) 1.5 (4) 1.4
41. Velocity of e.m. waves in paraffine is 2.07 x 108 m/sec. then the dielectric constant is:
(1) 2.10 (2) 1.87 (3) 1.45 (4) 1.22
42. After emission of a -particle, the nucleus :
(1) A – 4, Z – 2 (2) A,Z-1 (3) A, Z-2 (4) A + 2, Z
43. Charge on a proton is 9.6 x 107 c/kg. A proton is moving in a 1T magnetic field in 0.5
m radius circular path, the energy of proton in Mev.
(1) 16.34 (2) 12.02 (3) 8.25 (4) 4.84
44. If d2+ x = 0 then the angular frequency will be :
dx2
(1) √(2) 2 (3) (4) zero
45. Noble prize presented to Einstein for :
(1) therories of LASER
(2) photo electric effect
(3) theory of relativity
(4) theory of specific heat in solids
46. Before saturation current the ratio of plate currents at 400 v and 200 v plate voltage
is:
(1) 1 (2) 2 (3) 2√2 (4) √2
2 4
47. If I = I0 sin (t - /2) and E = E0 sin t then the power loss is :
(1) EI (2) E0I0 (3) E0I0 (4) zero
√2 2 √2
48. If the temp. of an ideal gas filled in a container is increased 10C, the increase in
pressure is 0.4%, the initial temp. of the gas is :
(1) 1200C (2) 2000K (3) 2500K (4) 2500C
49. Plate resistances of two triode values is 2KΩand 4KΩ, amplification factor of each
of the value is 400. The ratio of voltage amplifications, when used with 4kΩload
resistance, will be :
(1) 10 (2) 4/4 (3) 4/3 (4) 16/3
50. Relation between displacement x and time t is x = 2 – 5t + 6t2, the initial velocity will
be:
(1)-3 m/sec. (2) 12 m/sec. (3) 2 m/sec. (4) – 5 m/sec.


For full question paper here is the attachment:

IIT JEE Question Paper
Attached Files
File Type: pdf IIT JEE Question Paper.pdf (292.8 KB, 37 views)
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