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Exam Details

JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT

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Questions 90
Duration 180 mins
Package IIT-JEE Main - Previous Year Papers

Paper pattern & analysis

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Showing all 90 questions in this paper.

Subject distribution

Physics
30 Qs
Chemistry
30 Qs
Mathematics
30 Qs

Topic distribution

Algebra
14 Qs
Mechanics
13 Qs
Electricity
11 Qs
Inorganic Chemistry
11 Qs
Organic Chemistry
10 Qs
Physical Chemistry
9 Qs
Calculus
8 Qs
Coordinate Geometry
6 Qs
Modern Physics
4 Qs
Trigonometry
2 Qs
Optics
2 Qs

Subtopic distribution

Current Electricity
4 Qs
Straight Lines And Pair Of Straight Lines
3 Qs
Waves
2 Qs
Heat And Thermodynamics
2 Qs
Hydrogen
2 Qs
Binomial Theorem
2 Qs
3D Geometry
2 Qs
Alcohols Phenols And Ethers
2 Qs
Rotational Motion
2 Qs
Electrostatics
2 Qs
D And F Block Elements
2 Qs
Chemical Bonding And Molecular Structure
2 Qs

Difficulty distribution

Medium 56 62.2%
Easy 32 35.6%
Hard 2 2.2%

Question type distribution

Multiple Choices 90 100%

Syllabus

Full Syllabus

Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2019 · Physics · Mechanics · Waves
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
A train moves towards a stationary observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is ƒ1. If the speed of the train is reduced to 17 m/s, the frequency registered is ƒ2. If speed of sound is 340 m/s, then the ratio ƒ1/ƒ2 is -
A
19/18
B
20/19
C
21/20
D
18/17
2
2019 · Chemistry · Physical Chemistry · Solid State
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
Which premitive unit cell has unequal edge lengths (a \(\ne\) b \(\ne\) c) and all axial angles different from 90o?
A
Hexagonal
B
Tetragonal
C
Triclinic
D
Monoclinic
3
2019 · Mathematics · Algebra · Binomial Theorem
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
If  \({\sum\limits_{i = 1}^{20} {\left( {{{{}^{20}{C_{i - 1}}} \over {{}^{20}{C_i} + {}^{20}{C_{i - 1}}}}} \right)} ^3} = {k \over {21}}\)  then k is equal to
A
100
B
200
C
50
D
400
4
2019 · Physics · Mechanics · Heat And Thermodynamics
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
Three Carnot engines operate in series between a heat source at a temperature T1 and a heat sink at temperature T4 (see figure). There are two other reservoirs at temperature T2 and T3, as shown, with T1 > T2 > T3 > T4. The three engines are equally efficient if -

JEE Main 2019 (Online) 10th January Morning Slot Physics - Heat and Thermodynamics Question 397 English
A
T2 = (T13T4)1/4;  T3 = (T1T43)1/4
B
T2 = (T1T4)1/2;  T3 = (T12T4)1/3
C
T2 = (T1T42)1/3;  T3 = (T12T4)1/3
D
T2 = (T12T4)1/3;  T3 = (T1T42)1/3
5
2019 · Chemistry · Physical Chemistry · Surface Chemistry
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
Which of the following is not an example of heterogenous catalytic reaction?
A
Ostwald's process
B
Combustion of coal
C
Hydrogenation of vegetable oils
D
Haber's process
6
2019 · Mathematics · Algebra · 3D Geometry
JEE MAIN 2019 ONLINE 10TH JANUARY MORNING SLOT
Let A be a point on the line \(\overrightarrow r = \left( {1 - 3\mu } \right)\widehat i + \left( {\mu - 1} \right)\widehat j + \left( {2 + 5\mu } \right)\widehat k\) and B(3, 2, 6) be a point in the space. Then the value of \(\mu\) for which the vector \(\overrightarrow {AB}\)  is parallel to the plane x \(-\) 4y + 3z = 1 is -
A
\({1 \over 8}\)
B
\({1 \over 2}\)
C
\({1 \over 4}\)
D
\(-\) \({1 \over 4}\)