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Frequently Asked IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions Page 10

(#M40021755) IIT-JEE QUESTION permutation and combination Keep an EYE

The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order as in an English dictionary. The number of words that appear before the word COCHIN is??
a) 360
b) 192
c) 96
d) 48

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(#M40021799) IIT-JEE QUESTION circle Keep an EYE

A tangent PT is drawn to the circle x2 + y2 = 4 at the point P(sqrt(3),1) . A straight line L, perpendicular to PT is a tangent to the circle (x -3)2 + y2 =1. The equation of l are

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(#M40028116) IIT-JEE QUESTION 2007 Question Keep an EYE

STATEMENT-1: Molecules that are not superimposable on their mirror images are chiral
because
STATEMENT-2: All chiral molecules have chiral centres.
(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
(B) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C) Statement-1 is True, Statement-2 is False
(D) Statement-1 is False, Statement-2 is True

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(#M40019752) IIT-JEE QUESTION Keep an EYE

In a triangle ABC, let angle C=π/2.If r and R are the inradius and the circumradius resp, of a triangle then 2(r+R) is equal to,
(a). a+b
(b). b+c
(c). c+a
(d). a+b+c

Asked In IIT-JEE Chandni Maurya (12 years ago)

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(#M40028145) IIT-JEE QUESTION 2008 Question Keep an EYE

Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It
is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the
charges given to the shells, Q1 : Q2 : Q3, is
(A) 1 : 2 : 3 (B) 1 : 3 : 5
(C) 1 : 4 : 9 (D) 1 : 8 : 18

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(#M40027785) IIT-JEE QUESTION 2011 question Keep an EYE

A silver sphere of radius 1 cm and work function 4.7 eV is suspended from an insulating thread in freespace.
It is under continuous illumination of 200 nm wavelength light. As photoelectrons are emitted, the
sphere gets charged and acquires a potential. The maximum number of photoelectrons emitted from the
sphere is A ´ 10^z (where 1 < A < 10). The value of ‘Z’ is

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(#M40027958) IIT-JEE QUESTION 2012 question Keep an EYE

Let P = [aij] be a 3 × 3 matrix and let Q = [bij], where bij = 2i+jaij for 1  i, j  3. If the determinant of P is 2, then
the determinant of the matrix Q is

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(#M40027842) IIT-JEE QUESTION 2011 question Keep an EYE

Which of the following exists as covalent crystals
in the solid state ?
(1) Sulphur (2) Phosphorus
(3) Iodine (4) Silicon

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(#M40027926) IIT-JEE QUESTION 2010 question Keep an EYE

A diatomic ideal gas is compressed adiabatically to 1/32
of its initial volume. In the initial temperature of
the gas is Ti (in Kelvin) and the final temperature is aTi, the value of a is

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(#M40027371) IIT-JEE QUESTION Unit and Dimension Keep an EYE

Round off the following numbers to three
significant digits
(a) 15462
(b) 14.745
(c)14.750

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