As we all know this is the first time JEE Mains 2019 is conducting by National Test Agency through online mode. The authority will release official answer keys on 16th Jan 2019. The JEE Mains 2019 exam was held from 9th January to 12th January. The second day of the exam was the 10th of January which is held in two shifts Morning and Afternoon. Entrance360 experts provide you complete paper analysis of 10th January, morning shift paper. In this analysis, you will get to know the difficulty level of exam, subject and class-wise distribution and an overall analysis of this exam. The overall difficulty level of the exam was moderate.
The JEE Mains paper 1 dominated by the class 12th syllabus as compared to the class 11th syllabus. In the physics section, Questions from the magnetic field and mechanics were difficult but modern physics was doable. There were 18 questions from class 12th and 12 Questions from class 11th was available
Chapters |
Number Of Questions |
Electrostatics & Capacitors |
3 |
Current Electricity |
4 |
Magnetic field and AC |
3 |
Modern Physics |
5 |
Ray & Wave optics |
3 |
Heat & Thermodynamics |
1 |
Mechanics |
11 |
Easy |
10 |
Moderate |
16 |
Difficult |
4 |
The chemistry was Easy and tricky amongst the three sections, but as compared to the 9th January morning session paper 10th Jan morning session paper is tough. Most of the Questions are from organic and inorganic chemistry. There were more questions asked from the 12th standard syllabus as compared to an 11th standard syllabus. There were 17 questions from class 12th and 13 Questions from class 11th was available.
Chapters |
Number Of Questions |
Inorganic Chemistry |
11 |
Physical Chemistry |
8 |
Organic Chemistry |
10 |
Easy |
14 |
Moderate |
12 |
Difficult |
4 |
There were no changes in exam pattern, mathematics was the Easy to Moderate level. Most of the questions were very specific and calculative. Maths was the time-consuming section. More Question was asked by Coordinate Geometry. Calculus was very tricky if you know the formula and you have a good understanding of the chapter then it must be easy for you.
Chapters |
Number Of Questions |
Coordinate geometry |
5 |
Statistics and Probability |
2 |
Three Dimensional Geometry |
2 |
Matrices and Determinants |
2 |
Trigonometry |
3 |
Permutations and combinations |
1 |
Integral Calculus |
3 |
Complex numbers and quadratic equations |
2 |
Vector Algebra |
1 |
Differential equations |
2 |
Sets, Relations and Functions |
1 |
Sequence and series |
1 |
Mathematical Induction |
1 |
Binomial theorem and its simple applications |
1 |
Limit, continuity, and differentiability |
3 |
Easy |
7 |
Moderate |
15 |
Difficult |
8 |
Sr. No. |
JEE Mains Paper 1 Detailed Analysis |
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
7 |
The Young's modulus of a steel wire of length and cross-sectional area
, is
. The wire is suspended from its support on a given planet. A block of mass
is attached to the free end of the wire. The acceleration due to gravity on the planet is
of its value on the earth. The elongation of wire is (Take
on the earth
):
0.1 cm
0.1 mm
1 cm
1 mm
In an amplitude modulation, a modulating signal having amplitude of X V is superimposed with a carrier signal of amplitude Y V in first case. Then, in second case, the same modulating signal is superimposed with different carrier signal of amplitude 2Y V. The ratio of modulation index in the two cases respectively will be :
2: 1
1: 2
4: 1
1: 1
Why is ice at 0°C more effective in cooling than water at 0°C?