JEE Main Question Paper
Candidates if you are preparing for IIT JEE Main exam and looking for JEE Main Question Paper, then you are at the right page. Here we are providing the selected Previous Year Question with answers for insight of current year paper. We suggest to all the students to view or download the PDF of JEE Main Question Paper 2017 to prepare for upcoming exams online.
JEE Main Sample Papers allow the candidates to attain better practice and understanding of the concepts and also help to check their preparation level. It is very essential for the students to go through the Previous Year Question Papers for getting good score in the exam.
Joint Entrance Exam (JEE) is conducted by IIT for giving admission to dedicated and deserving candidates in prestigious engineering colleges. IIT conducts JEE exam in two parts i.e. – JEE mains and JEE Advanced which comprises of three sections-
www.recruitmentinboxx.com has provided some JEE Questions of previous year papers with solutions for the preparation of entrants. Candidates must check it below:
JEE Main Question Paper
Q1- The pressure that has to be applied to the ends of a steel wire of length 10 cm to keep its length constant when its temperature is raised by 100°C is: (For steel Young’s modulus is 2 × 1011 N m−2and coefficient of thermal expansion is 1.1 × 10−5K−1)
(1) 2.2 × 107 Pa
(2) 2.2 × 106 Pa
(3) 2.2 × 108 Pa
(4) 2.2 × 109 Pa
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Q2- A particle moves with simple harmonic motion in a straight line. In first τ s, after starting from rest it travels a distance a, and in next τ s it travels 2a, in same direction, then:
(1) Amplitude of motion is 4a
(2) Time period of oscillations is 6τ
(3) Amplitude of motion is 3a
(4) Time period of oscillations is 8τ
Q3- During the propagation of electromagnetic waves in a medium:
(1) Electric energy density is equal to the magnetic energy density.
(2) Both electric and magnetic energy densities are zero.
(3) Electric energy density is double of the magnetic energy density.
(4) Electric energy density is half of the magnetic density.
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Q4- The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5s. In another 10s it will decrease to α times its original magnitude, where α equals:
Q6- Two capacitors C1 and C2 are charged to 120 V and 200 V respectively. It is found that by connecting them together the potential on each one can be made zero. Then:
(1) 5C1 = 3C2
(2) 3C1 = 5C2
(3) 3C1 + 5C2 = 0
(4) 9C1 = 4C2
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Q7- What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R?
Q8- Among the following oxoacids, the correct decreasing order of acid strength is:
(1) HClO4 > HClO3 > HClO2 > HOCl
(2) HClO2 > HClO4 > HClO3 > HOCl
(3) HOCl > HClO2 > HClO3 > HClO4
(4) HClO4 > HOCl > HClO2 > HClO3
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Q9- Which one of the following bases is not present in DNA?
Q10- The major organic compound formed by the reaction of 1, 1, 1 − trichloroethane with silver powder is:
(1) (1) 2 − Butyne
(2) (2) 2 − Butene
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Q11- The metal that cannot be obtained by electrolysis of an aqueous solution of its salts is :
Q12- Which one of the following properties is not shown by NO?
(1) It combines with oxygen to form nitrogen dioxide
(2) It′s bond order is 2.5
(3) It is diamagnetic in gaseous state
(4) It is a neutral oxide
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Q13- On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:
(1) an alkyl cyanide
(2) an alkyl isocyanide
(3) an alkanol
(4) an alkanediol
Q14- The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1: 4. The ratio of number of their molecule is:
(1) 1 : 8
(2) 3 : 16
(3) 1 : 4
(4) 7 : 32
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Q15- The variance of first 50 even natural numbers is:
Q16- Let PS be the median of the triangle with vertices P (2, 2), Q (6, −1) and R (7, 3). The equation of the line passing through (1, −1) and parallel to PS is:
(1) 4x − 7y − 11 = 0
(2) 2x + 9y + 7 = 0
(3) 4x + 7y + 3 = 0
(4) 2x − 9y − 11 = 0
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Q17- The slope of the line touching both the parabolas y2 = 4x and x2 = −32y is:
ANS ( 1)
Q18- A multiple-choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just by guessing is:
(2) 5/ 35
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Q19- Let A and B be two sets containing 2 elements and 4 elements respectively. The number of subsets of A × B having 3 or more elements is :
Q20- Distance between two parallel planes 2x + y +2z = 8 and 4x + 2y + 4z + 5 = 0 is :
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