Exam Details
JEE Main 2021 (Online) 25th February Evening Shift
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Questions
90
Duration
60 mins
Package
IIT-JEE Main - Previous Year Papers
Paper pattern & analysis
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Topic distribution
Subtopic distribution
Difficulty distribution
90questions
Medium
53
58.9%
Easy
36
40%
Hard
1
1.1%
Question type distribution
90questions
Multiple Choices
60
66.7%
Numerical Answer Type (NAT)
30
33.3%
Sample questions from this paper
Questions are selected across the paper subjects wherever the paper contains that variety.
2021 · Physics · Modern Physics · Communication Systems
JEE Main 2021 (Online) 25th February Evening Shift
If a message signal of frequency 'fm' is amplitude modulated with a carrier signal of frequency 'fc' and radiated through an antenna, the wavelength of the corresponding signal in air is :
2021 · Chemistry · Inorganic Chemistry · Hydrogen
JEE Main 2021 (Online) 25th February Evening Shift
Water does not produce CO on reacting with :
2021 · Mathematics · Algebra · 3D Geometry
JEE Main 2021 (Online) 25th February Evening Shift
A plane passes through the points A(1, 2, 3), B(2, 3, 1) and C(2, 4, 2). If O is the origin and P is (2, \(-\)1, 1), then the projection of \(\overrightarrow {OP}\) on this plane is of length :
2021 · Physics · Mechanics · Heat And Thermodynamics
JEE Main 2021 (Online) 25th February Evening Shift
A reversible heat engine converts one-fourth of the heat input into work. When the temperature of the sink is reduced by 52K, its efficiency is doubled. The temperature in Kelvin of the source will be __________.
Enter a numerical response
2021 · Chemistry · Inorganic Chemistry · Isolation Of Elements
JEE Main 2021 (Online) 25th February Evening Shift
The major components of German Silver are :
2021 · Mathematics · Calculus · Definite Integration
JEE Main 2021 (Online) 25th February Evening Shift
\(\mathop {\lim }\limits_{n \to \infty } \left[ {{1 \over n} + {n \over {{{(n + 1)}^2}}} + {n \over {{{(n + 2)}^2}}} + ........ + {n \over {{{(2n + 1)}^2}}}} \right]\) is equal to :