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Exam Details

WB JEE 2019

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Questions 155
Duration 180 mins
Package WB JEE- 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 155 questions in this paper.

Subject distribution

Mathematics
75 Qs
Chemistry
40 Qs
Physics
40 Qs

Topic distribution

Calculus
29 Qs
Algebra
27 Qs
Physical Chemistry
17 Qs
Mechanics
15 Qs
Electricity
15 Qs
Coordinate Geometry
15 Qs
Inorganic Chemistry
13 Qs
Organic Chemistry
10 Qs
Modern Physics
6 Qs
Optics
4 Qs
Trigonometry
4 Qs

Subtopic distribution

Limits Continuity And Differentiability
8 Qs
Matrices And Determinants
6 Qs
Heat And Thermodynamics
6 Qs
Magnetism
6 Qs
Hyperbola
6 Qs
Current Electricity
5 Qs
Complex Numbers
5 Qs
Straight Lines And Pair Of Straight Lines
5 Qs
Definite Integration
5 Qs
Periodic Table
4 Qs
Differentiation
4 Qs
Radioactivity And Nuclear Chemistry
3 Qs

Difficulty distribution

Not classified 155 100%

Question type distribution

Multiple Choices 155 100%

Syllabus

Full Syllabus

Sample questions from this paper

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

1
2019 · Chemistry · Physical Chemistry · Radioactivity And Nuclear Chemistry
WB JEE 2019
The half-life period of \({}_{53}{I^{125}}\) is 60 days. The radioactivity after 180 days will be
A
25%
B
12.5%
C
33.3%
D
3.0%
2
2019 · Physics · Mechanics · Units And Measurements
WB JEE 2019
The density of the material of a cube can be estimated by measuring its mass and the length of one of its sides. If the maximum error in the measurement of mass and length are 0.3% and 0.2% respectively, the maximum error in the estimation of the density of the cube is approximately
A
1.1%
B
0.5%
C
0.9%
D
0.7%
3
2019 · Mathematics · Algebra · Matrices And Determinants
WB JEE 2019
Let \(A = \left[ {\matrix{ 3 & 0 & 3 \cr 0 & 3 & 0 \cr 3 & 0 & 3 \cr } } \right]\). Then, the roots of the equation det \((A - \lambda {I_3})\) = 0 (where I3 is the identity matrix of order 3) are
A
3, 0, 3
B
0, 3, 6
C
1, 0, \(-\)6
D
3, 3, 6
4
2019 · Chemistry · Physical Chemistry · Thermodynamics
WB JEE 2019
At constant pressure, the heat of formation of a compound is not dependent on temperature, when
A
\(\Delta {C_P}\) = 0
B
\(\Delta {C_v}\) = 0
C
\(\Delta {C_P}\) > 0
D
\(\Delta {C_P}\) < 0
5
2019 · Physics · Mechanics · Properties Of Matter
WB JEE 2019
A compressive force is applied to a uniform rod of rectangular cross-section so that its length decreases by 1%. If the Poisson's ratio for the material of the rod be 0.2, which of the following statements is correct?

"The volume approximately ................."
A
decreases by 1%
B
decreases by 0.8%
C
decreases by 0.6%
D
increases by 0.2%
6
2019 · Mathematics · Algebra · Quadratic Equations
WB JEE 2019
Let a, b, c be real numbers such that a + b + c < 0 and the quadratic equation ax2 + bx + c = 0 has imaginary roots. Then,
A
a > 0, c > 0
B
a > 0, c < 0
C
a < 0, c > 0
D
a < 0, c < 0