Exam Details
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
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Questions
90
Duration
180 mins
Package
IIT-JEE Main - Previous Year Papers
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Topic distribution
Subtopic distribution
Difficulty distribution
90questions
Medium
50
55.6%
Easy
37
41.1%
Hard
3
3.3%
Question type distribution
90questions
Multiple Choices
60
66.7%
Numerical Answer Type (NAT)
30
33.3%
Syllabus
Full Syllabus
Sample questions from this paper
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2021 · Chemistry · Inorganic Chemistry · Isolation Of Elements
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
The process that involves the removal of sulphur from the ores is :
2021 · Physics · Modern Physics · Communication Systems
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
A 25 m long antenna is mounted on an antenna tower. The height of the antenna tower is 75 m. The wavelength (in meter) of the signal transmitted by this antenna would be :
2021 · Mathematics · Algebra · Matrices And Determinants
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
Let \(P = \left[ {\matrix{
{ - 30} & {20} & {56} \cr
{90} & {140} & {112} \cr
{120} & {60} & {14} \cr
} } \right]\) and
\(A = \left[ {\matrix{ 2 & 7 & {{\omega ^2}} \cr \[{ - 1} & { - \omega } & 1 \cr\] 0 & { - \omega } & { - \omega + 1} \cr } } \right]\) where
\(\omega = {{ - 1 + i\sqrt 3 } \over 2}\), and I3 be the identity matrix of order 3. If the
determinant of the matrix (P\(-\)1AP\(-\)I3)2 is \(\alpha\)\(\omega\)2, then the value of \(\alpha\) is equal to ______________.
\(A = \left[ {\matrix{ 2 & 7 & {{\omega ^2}} \cr \[{ - 1} & { - \omega } & 1 \cr\] 0 & { - \omega } & { - \omega + 1} \cr } } \right]\) where
\(\omega = {{ - 1 + i\sqrt 3 } \over 2}\), and I3 be the identity matrix of order 3. If the
determinant of the matrix (P\(-\)1AP\(-\)I3)2 is \(\alpha\)\(\omega\)2, then the value of \(\alpha\) is equal to ______________.
Enter a numerical response
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
The type of pollution that gets increased during the day time and in the presence of O3 is :
2021 · Physics · Electricity · Magnetic Properties Of Matter
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
A bar magnet of length 14 cm is placed in the magnetic meridian with its north pole pointing towards the geographic north pole. A neutral point is obtained at a distance of 18 cm from the center of the magnet. If BH = 0.4 G, the magnetic moment of the magnet is : (1G = 10\(-\)4 T)
2021 · Mathematics · Coordinate Geometry · Parabola
JEE MAIN 2021 ONLINE 16TH MARCH MORNING SHIFT
If the three normals drawn to the parabola, y2 = 2x pass through the point (a, 0) a \(\ne\) 0, then 'a' must be greater than :