Exam Details
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING 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
60
66.7%
Easy
25
27.8%
Hard
5
5.6%
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 · Physical Chemistry · Surface Chemistry
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
The sol given below with negatively charged colloidal particles is :
2021 · Physics · Modern Physics · Atoms And Nuclei
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
At time t = 0, a material is composed of two radioactive atoms A and B, where NA(0) = 2NB(0). The decay constant of both kind of radioactive atoms is \(\lambda\). However, A disintegrates to B and B disintegrates to C. Which of the following figures represents the evolution of NB(t) / NB(0) with respect to time t?
[NA (0) = No. of A atoms at t = 0
NB (0) = No. of B atoms at t = 0]
[NA (0) = No. of A atoms at t = 0
NB (0) = No. of B atoms at t = 0]
A
B
C
D
2021 · Mathematics · Algebra · 3D Geometry
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
Let Q be the foot of the perpendicular from the point P(7, \(-\)2, 13) on the plane containing the lines \({{x + 1} \over 6} = {{y - 1} \over 7} = {{z - 3} \over 8}\) and \({{x - 1} \over 3} = {{y - 2} \over 5} = {{z - 3} \over 7}\). Then (PQ)2, is equal to ___________.
Enter a numerical response
2021 · Chemistry · Physical Chemistry · Gaseous State
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
The interaction energy of London forces between two particles is proportional to rx, where r is the distance between the particles. The value of x is :
2021 · Physics · Mechanics · Heat And Thermodynamics
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
A refrigerator consumes an average 35W power to operate between temperature \(-\)10\(^\circ\)C to 25\(^\circ\)C. If there is no loss of energy then how much average heat per second does it transfer?
2021 · Mathematics · Algebra · Mathematical Reasoning
JEE MAIN 2021 ONLINE 26TH AUGUST EVENING SHIFT
Consider the two statements :
(S1) : (p \(\to\) q) \(\vee\) (\(\sim\) q \(\to\) p) is a tautology .
(S2) : (p \(\wedge\) \(\sim\) q) \(\wedge\) (\(\sim\) p \(\wedge\) q) is a fallacy.
Then :
(S1) : (p \(\to\) q) \(\vee\) (\(\sim\) q \(\to\) p) is a tautology .
(S2) : (p \(\wedge\) \(\sim\) q) \(\wedge\) (\(\sim\) p \(\wedge\) q) is a fallacy.
Then :