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Frequently Asked IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions Page 13

(#M40027784) IIT-JEE QUESTION 2011 question Keep an EYE

A series R-C combination is connected to an AC voltage of angular frequency w = 500 radian/s. If the
impedance of the R-C circuit is R sqrt(1.25) , the time constant (in millisecond) of the circuit is

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(#M40035252) IIT-JEE QUESTION Numerical Ability and Scientific Aptitude Keep an EYE

A sum of 4000 is lent over 5 yeas at the interest f 15% per annum. Find the interest

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(#M40027802) IIT-JEE QUESTION 2011 question Keep an EYE

Statement-I : Higher the range, greater is the
resistance of ammeter.
Statement-II : To increase the range of ammeter,
additional shunt needs to be used across it.
(1) If statement-I is true but statement-II is false.
(2) If statement-I is false but statement-II is true.
(3) If both statement-I and statement-II are true,
and statement-II is the correct explanation of
statement-I.
(4) If both statement-I and statement-II are true but
statement-II is not the correct explanation of
statement-I

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(#M40028074) IIT-JEE QUESTION Mental Ability Keep an EYE

Two particle of mass m each are tied at the ends of a light string of length 2a. The
whole system is kept on a frictionless horizontal surface with the string held tight so
that each mass is at a distance ‘a’ from the center P (as shown in the figure). Now, the
mid-point of the string is pulled vertically upwards with a small but constant force F. As
a result, the particles move towards each other on the surface. The magnitude of
acceleration, when the separation between them becomes 2x is

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(#M40027368) IIT-JEE QUESTION Unit and Dimension Keep an EYE

A gas bubble from an explosion under water,
oscillates with a period T proportional to
padbEc where p is the static pressure, d is
the density of water and E is the total energy
of explosion. Find the values of a,b, and c.

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(#M40027883) IIT-JEE QUESTION 2010 question Keep an EYE

A block of mass m is on an inclined plane of angle θ. The coefficient of
friction between the block and the plane is μ and tan θ > μ. The block is held
stationary by applying a force P parallel to the plane. The direction of force
pointing up the plane is taken to be positive. As P is varied from P1 = mg (sin
θ – μ cos θ) to P2 mg (sin θ + μ cos θ), the frictional force f is

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(#M40028136) IIT-JEE QUESTION 2008 Question Keep an EYE

The correct statement(s) regarding defects in solids is(are)
(A) Frenkel defect is usually favoured by a very small difference in the sizes of cation and anion
(B) Frenkel defect is a dislocation defect
(C) Trapping of an electron in the lattice leads to the formation of F-center
(D) Schottky defects have no effect on the physical properties of solids

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(#M40027843) IIT-JEE QUESTION 2011 question Keep an EYE

A solution of (–) – 1 – chloro – 1 – phenylethane
in toluene racemises slowly in the presence of a
small amount of SbCl5, due to the formation of -
(1) carbocation (2) free radical
(3) carbanion (4) carbene

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(#M40027827) IIT-JEE QUESTION 2011 question Keep an EYE

The sum of first 20 terms of the sequence
0.7, 0.77, 0.777, ...., is -

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(#M40027741) IIT-JEE QUESTION Chemistry Keep an EYE

Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl– , CN– and H2O, respectively,
are
(A) octahedral, tetrahedral and square planar (B) tetrahedral, square planar and octahedral
(C) square planar, tetrahedral and octahedral (D) octahedral, square planar and octahedral

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