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Recent questions tagged jee mains
+2
votes
1
answer
The vector a and vector b are not perpendicular and vector c and vector d are two vectors satisfying,
asked
Apr 7, 2019
in
JEE
by
kratos
jee
jee mains
vector algebra
+2
votes
1
answer
The technique used to transmit audio signals in television broadcasts is :
asked
Apr 7, 2019
in
Physics
by
kratos
atom models
modern physics
csat
jee
communication systems
class-10
jee mains
class-12
quantum physics
+1
vote
1
answer
The differential equation of all non-horizontal lines in a plane is (A) d^2y/dx^2 = 0
asked
Apr 7, 2019
in
JEE
by
kratos
jee
class-12
differential equations
jee mains
+3
votes
1
answer
An eccentric person starts writing numbers from 1 to n in a row such that i^th number is written i^2 times. Then find the 500th digit
asked
Apr 7, 2019
in
JEE
by
kratos
binomial theorem
jee
jee mains
+1
vote
1
answer
An LED is constructed from a Pn junction based on a certain semi-conducting material with energy gap of 1.55 eV.
asked
Apr 7, 2019
in
Physics
by
kratos
jee main 2021
jee
jee main
jee mains
solid state physics
+3
votes
1
answer
Assertion : A body of mass 1 kg is moving with an acceleration of 1 ms^–1 The rate of change of its momentum is 1 N.
asked
Apr 7, 2019
in
JEE
by
kratos
laws of motion
jee
jee mains
+1
vote
1
answer
Let f(x) = x^3 – 4x^2 + 8x + 11, if LMVT is applicable on f(x) in [0, 1], value of c is :
asked
Apr 7, 2019
in
JEE
by
kratos
jee main 2020
jee
jee mains
+3
votes
1
answer
If sin^ -1 (x/5) +cosec ^-1 (5/4) =π/2 , then the value of x is (a) 4 (b) 5 (c) 1 (d) 3
asked
Apr 7, 2019
in
JEE
by
kratos
class-12
jee
jee mains
inverse trigonometric functions
+2
votes
0
answers
A person can jump 1.2 m on Earth. How high can he jump on a planet whose density is 1/3rd and radius is 4 times that of Earth,
asked
Apr 7, 2019
in
JEE
by
kratos
gravitation
class-11
jee mains
jee
cbse
work and energy
+1
vote
1
answer
5 ***** of PCl5 are heated in a closed vessel of 5 litre capacity. At equilibrium 40% of PCl5 is found to be dissociated.
asked
Apr 7, 2019
in
JEE
by
kratos
class-11
jee
physical and chemical equilibrium
jee mains
equilibrium
chemical equilibrium
+2
votes
1
answer
Suppose the amplitude of modulated wave equal to the signal amplitude. Then modulation is
asked
Apr 7, 2019
in
JEE
by
kratos
cbse
jee
communication systems
jee mains
class-12
+1
vote
1
answer
Which of the following has the shortest C-Cl bond? (1) Cl–CH=CH–OCH3
asked
Apr 7, 2019
in
JEE
by
kratos
halides
jee main 2020
jee
hydrocarbons
halogen derivatives
jee mains
hydroxy compounds & ethers
+2
votes
1
answer
If angle between asymptote of hyperbola (x^2/a^2) – (y^2/b^2) = 1 is 45°. The value of eccentricity is ........
asked
Apr 7, 2019
in
JEE
by
kratos
jee mains
jee
circle
conic section
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vote
1
answer
A lot contains 20 articles. The probability that the lot contains exactly two defective articles is 0.4;
asked
Apr 7, 2019
in
Mathematics
by
kratos
jee
probability
ncert class 10 maths
class-10
jee mains
class-12
+3
votes
1
answer
In the circuit shown in figure, calculate the following : (i) Potential difference between points‘a’ and ‘b’ when switch ‘*’is open.
asked
Apr 7, 2019
in
JEE
by
kratos
irodov
electrodynamics
electric current
jee
jee mains
ohms law
+1
vote
1
answer
What is the value of the determinant |(0,2,0),(2,3,4),(4,5,6)|?
asked
Apr 7, 2019
in
JEE
by
kratos
determinant
jee
matrices
jee mains
class-12
+1
vote
1
answer
A force 4i - 3j + 2k passes through the point (–9, 2, 1). Find the component of moment of the force about the axis of reference.
asked
Apr 7, 2019
in
JEE
by
kratos
cross product
jee
jee mains
vector
class-12
+3
votes
1
answer
An ice cube is floating in water above which a layer of lighter oil is poured. As the ice melts completely,
asked
Apr 7, 2019
in
JEE
by
kratos
class-11
jee mains
mechanics
jee
cbse
fluid mechanics
+2
votes
1
answer
Two coils have a mutual inductance 0.005 H. The current changes in the first coil according to equation
asked
Apr 7, 2019
in
Class 12
by
kratos
electromagnetic induction
neet
jee
aiims
jee mains
magnetism
alternating current
class-12
+2
votes
1
answer
In air, a lossless transmission line of length 50 cm with L = 10μH/m, C = 40PF/m is operated at 25 MHz.
asked
Apr 7, 2019
in
JEE
by
kratos
transmission lines
jee
jee mains
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