JEE Main Daily Practice Questions 15 January 2025
To enhance the regular preparation for JEE Main Session 1 2025, aspirants should solve practice questions daily. Here are JEE Main Daily Practice Questions 15 January 2025 for Physics, Chemistry, and Mathematics.
JEE Main Daily Practice Questions 15 January 2025: JEE Main Session 1 2025 will take place from January 22 to 31. Applicants preparing for the exam must focus on practising the JEE Main sample papers. Hence, here are some daily practice questions with answers for JEE Main 9 January 2025, including five questions from each subject: Mathematics, Physics, and Chemistry.
Also Read | NEET Daily Practice Questions 15 January 2025
JEE Main Daily Practice Questions 15 January 2025: Physics
Candidates can check out the JEE Main daily practice questions 15 January 2025 from the Physics section:
Question 1: A block ‘A’ takes 2 s to slide down a frictionless incline of 30° and length ‘l’, kept inside a lift going up with uniform velocity ‘v’. If the incline is changed to 45°, the time taken by the block, to slide down the incline, will be approximately
(A) 2.66 s
(B) 0.83 s
(C) 1.68 s
(D) 0.70 s
Answer (C)
Question 2: The velocity of the bullet becomes one third after it penetrates 4 cm in a wooden block. Assuming that bullet is facing a constant resistance during its motion in the block. The bullet stops completely after travelling at (4 + x) cm inside the block. The value of x is
(A) 2.0
(B) 1.0
(C) 0.5
(D) 1.5
Answer (C)
Question 3: A steel wire of length 3.2 m (Ys = 2.0 × 1011 Nm–2) and a copper wire of length 4.4 m (Yc = 1.1 × 1011 Nm–2), both of radius 1.4 mm are connected end to end. When stretched by a load, the net elongation is found to be 1.4 mm. The load applied, in Newton, will be: (Given p = 22/7)
(A) 360
(B) 180
(C) 1080
(D) 154
Answer (D)
Question 4: Which statements are correct about degrees of freedom?
(A) A molecule with n degrees of freedom has n2different ways of storing energy.
(B) Each degree of freedom is associated with 1/2 RT average energy per mole.
(C) A monatomic gas molecule has 1 rotational degree of freedom whereas a diatomic molecule has 2 rotational degrees of freedom.
(D) CH4 has a total of 6 degrees of freedom.
Choose the correct answer from the option given below:
(A) (B) and (C) only
(B) (B) and (D) only
(C) (A) and (B) only
(D) (C) and (D) only
Answer (B)
Question 5: A charge of 4 micro C is to be divided into two. The distance between the two divided charges is constant. The magnitude of the divided charges so that the force between them is maximum, will be:
(A) 1micro C and 3 micro C
(B) 2 micro C and 2micro C
(C) 0 micro C 4 micro C
(D) 1.5 micro C and 2.5micro C
Answer (B)
JEE Main Daily Practice Questions 15 January 2025: Chemistry
Candidates can check out the JEE Main daily practice questions 15 January 2025 from the Chemistry section:
Question 1: The correct decreasing order of energy for the orbitals having, following set of quantum numbers:
(A) n = 3, l = 0, m = 0
(B) n = 4, l = 0, m = 0
(C) n = 3, l = 1, m = 0
(D) n = 3, l = 2, m = 1
(A) (D) > (B) > (C) > (A)
(B) (B) > (D) > (C) > (A)
(C) (C) > (B) > (D) > (A)
(D) (B) > (C) > (D) > (A)
Answer (A)
Question 2:Outermost electronic configurations of four elements A, B, C, D are given below :
(A) 3s2
(B) 3s23p1
(C) 3s23p3
(D) 3s23p4
The correct order of fist ionization enthalpy for them is:
(A) (A) < (B) < (C) < (D)
(B) (B) < (A) < (D) < (C)
(C) (B) < (D) < (A) < (C)
(D) (B) < (A) < (C) < (D)
Answer (B)
Question 3: Given below are two statements.
Statement I : For KI, molar conductivity increases steeply with dilution.
Statement-II : For carbonic acid, molar conductivity increases slowly with dilution.
In the light of the above statements, choose the correct answer from the options given below :
(A) Both Statement I and Statement II are true
(B) Both Statement I and Statement II are false
(C) Statement I is true but Statement II is false
(D) Statement I is false but Statement II is true
Answer (B)
Question 4: An element A of group 1 shows similarity to an element B belonging to group 2. If A has maximum hydration enthalpy in group 1 then B is:
(A) Mg
(B) Be
(C) Ca
(D) Sr
Answer (A)
Question 5: Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) :
Assertion (A) : Dissolved substances can be removed from a colloidal solution by diffusion through a parchment paper.
Reason (R) : Particles in a true solution cannot pass through parchment paper but the colloidal particles can pass through the parchment paper.
In the light of the above statements, choose the correct answer from the options given below
(A) Both (A) and (R) are correct and (R) is the correct explanation of (A)
(B) Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(C) (A) is correct but (R) is not correct
(D) (A) is not correct but (R) is correct
Answer (C)
JEE Main Daily Practice Questions 15 January 2025: Mathematics
Candidates can check out the JEE Main daily practice questions 15 January 2025 from the Maths section:
Problem 1: A seven digit number is formed using digits 3, 3, 4, 4, 4, 5, 5. The probability, that number so formed is divisible by 2, is :
(1) 1/7
(2) 6/7
(3) 4/7
(4) 3/7
Solution (4)
Problem 2: The triangle of maximum area that can be inscribed in a given circle of radius ‘r’ is :
(1) An isosceles triangle with base equal to 2r.
(2) An equilateral triangle of height 2r/3
(3) A right angle triangle having two of its sides of length 2r and r.
(4) An equilateral triangle having each of its side of length (3)^½ r.
Solution (4)
Problem 3: Let L be a line obtained from the intersection of two planes x + 2y + z = 6 and y + 2z = 4. If point P(a, b, g) is the foot of perpendicular from (3, 2, 1) on L, then the value of 21(a + b + g) equals :
(1) 68
(2) 102
(3) 142
(4) 136
Solution (2)
Problem 4: Let A(1, 4) and B(1, –5) be two points. Let P be a point on the circle (x – 1)2 + (y – 1)2 = 1 such that (PA)2 + (PB)2 have maximum value, then the points, P, A and B lie on :
(1) an ellipse
(2) a parabola
(3) a straight line
(4) a hyperbola
Solution (3)
Problem 5: If the locus of the mid-point of the line segment from the point (3, 2) to a point on the circle, x2 + y2 = 1 is a circle of radius r, then r is equal to
(1) 1/3
(2) 1
(3) 1/4
(4) 1/2
Solution (4)
Also Read | |
JEE Main Daily Practice Questions 14 January 2025 |
NEET Daily Practice Questions 14 January 2025 |
Keep visiting CollegeDekho for the latest Education News on entrance exams, board exams and admissions. You can also write to us at our email ID news@collegedekho.com.