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Exam Details

JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT

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

Paper pattern & analysis

Filter this paper by subject, topic or subtopic. Every graph updates from the selected questions.

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Showing all 90 questions in this paper.

Subject distribution

Physics
30 Qs
Chemistry
30 Qs
Mathematics
30 Qs

Topic distribution

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

Subtopic distribution

Heat And Thermodynamics
5 Qs
Simple Harmonic Motion
3 Qs
Thermodynamics
3 Qs
Rotational Motion
3 Qs
Current Electricity
3 Qs
S Block Elements
2 Qs
P Block Elements
2 Qs
Environmental Chemistry
2 Qs
Binomial Theorem
2 Qs
Matrices And Determinants
2 Qs
Probability
2 Qs
3D Geometry
2 Qs

Difficulty distribution

Medium 50 55.6%
Easy 37 41.1%
Hard 3 3.3%

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 · Simple Harmonic Motion
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
A simple pendulum of length 1 m is oscillating with an angular frequency 10 rad/s. The support of the pendulum starts oscillating up and down with a small angular frequency of 1 rad/s and an amplitude of 10–2 m. The relative change in the angular frequency of the pendulum is best given by :
A
1 rad/s
B
10\(-\)3 rad/s
C
10\(-\)1 rad/s
D
10\(-\)5 rad/s
2
2019 · Chemistry · Physical Chemistry · Solid State
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
The radius of the largest sphere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is represented by 'a')
A
0.134 a
B
0.067 a
C
0.047 a
D
0.027 a
3
2019 · Mathematics · Algebra · Binomial Theorem
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
Let Sn = 1 + q + q2 + . . . . . + qn and Tn = 1 + \(\left( {{{q + 1} \over 2}} \right) + {\left( {{{q + 1} \over 2}} \right)^2}\) + . . . . . .+ \({\left( {{{q + 1} \over 2}} \right)^n}\) where q is a real number and q \(\ne\) 1. If   101C1 + 101C2 . S1 + .... + 101C101 . S100 = \(\alpha\)T100 then \(\alpha\) is equal to
A
202
B
200
C
2100
D
299
4
2019 · Physics · Modern Physics · Communication Systems
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
An amplitude modulated signal is plotted below :

JEE Main 2019 (Online) 11th January Evening Slot Physics - Communication Systems Question 83 English

Which one of the following best describes the above signal ?
A
(1 + 9sin (2\(\pi\) \(\times\) 104 t)) sin(2.5\(\pi\) \(\times\) 105t) V
B
(9 + sin (4\(\pi\) \(\times\) 104 t)) sin(5\(\pi\) \(\times\) 105t) V
C
(9 + sin (2\(\pi\) \(\times\) 104 t)) sin(2.5\(\pi\) \(\times\) 105t) V
D
(9 + sin (2.5\(\pi\) \(\times\) 104 t)) sin(2\(\pi\) \(\times\) 104t) V
5
2019 · Chemistry · Inorganic Chemistry · S Block Elements
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
The reaction that does NOT define calcination is :
A
2Cu2S + 3O2 \(\buildrel \Delta \over \longrightarrow\) 2Cu2O + 2SO2
B
CaCO3 . MgCO3 \(\buildrel \Delta \over \longrightarrow\) CaO + MgO + 2CO2
C
ZnCO3 \(\buildrel \Delta \over \longrightarrow\) ZnO + CO2
D
Fe2O3 . XH2O \(\buildrel \Delta \over \longrightarrow\) Fe2O3 + XH2O
6
2019 · Mathematics · Algebra · Matrices And Determinants
JEE MAIN 2019 ONLINE 11TH JANUARY EVENING SLOT
Let A and B be two invertible matrices of order 3 \(\times\) 3. If det(ABAT) = 8 and det(AB–1) = 8,
then det (BA–1 BT) is equal to :
A
\({1 \over 4}\)
B
16
C
\({1 \over {16}}\)
D
1