JEE Main DPP 19 November 2024: Daily practice problems for 2025 aspirants

JEE Main DPP 19 November 2024

JEE Main DPP 19 November 2024: 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 DPP 19 November 2024, including five questions from each subject: Mathematics, Physics, and Chemistry.

Also Read | NEET Daily Practice Questions 19 November 2024: DPP for 2025 aspirants

JEE Main DPP 19 November 2024: Physics

Candidates can check out the JEE Main DPP 19 November 2024 daily practice problems for 2025 aspirants from the Physics section:

Question 1: A bar magnet with a magnetic moment 5.0 Am2 is placed in parallel position relative to a magnetic field of 0.4 T. The amount of required work done in turning the magnet from parallel to antiparallel position relative to the field direction is

(1) Zero

(2) 1 J

(3) 4 J

(4) 2 J

Answer (3)

Question 2: The maximum potential energy of a block executing simple harmonic motion is 25 J. A is amplitude of oscillation. At A/2, the kinetic energy of the block is

(1) 18.75 J

(2) 12.5 J

(3) 37.5 J

(4) 9.75 J

Answer (1)

Question 3: A free neutron decays into a proton but a free proton does not decay into a neutron. This is because

(1) neutron has larger rest mass than proton

(2)  neutron is a composite particle made of a proton and an electron

(3)  proton is a charged particle

(4)  neutron is an uncharged particle

Answer (1)

Question 4: If a source of electromagnetic radiation having power 15kW produces 1016 photons per second, the radiation belongs to a part of the spectrum is.

(Take Planck constant h = 6 × 10–34Js)

(1) Gamma rays

(2) Ultraviolet rays

(3) Micro waves

(4) Radio waves

Answer (1)

Question 5: Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following {Assume negligible air friction}

(1) Time taken by them to reach the earth's surface will be independent of the properties of their materials

(2)  Insulating ball will reach the earth's surface earlier than the metal ball

(3)  Metal ball will reach the earth's surface earlier than the insulating ball

(4)  Both will reach the earth's surface simultaneously.

Answer (2)

JEE Main DPP 19 November 2024: Chemistry

Candidates can check out the JEE Main DPP 19 November 2024 daily practice problems for 2025 aspirants from the Chemistry section:

Question 1: The correct order of basicity of oxides of vanadium is

1) V2O3 > V2O5 > V2O4

(2) V2O4 > V2O3 > V2O5

(3) V2O3 > V2O4 > V2O5

(4) V2O5 > V2O4 > V2O3

Answer (3)

Question 2: Which one of the following statements is correct for electrolysis of brine solution?

(1)  CI2 is formed at cathode

(2)  H2 is formed at anode

(3)  O2 is formed at cathode

(4)  OH– is formed at cathode

Answer (4)

Question 3: Which transition in the hydrogen spectrum would have the same wavelength as the Balmer type transition from n = 4 to n = 2 of He+ spectrum

(1) n = 2 to n = 1

(2) n = 3 to n = 4

(3) n = 1 to n = 2

(4) n = 1 to n = 3

Answer (1)

Question 4: Which of the following artificial sweeteners has the highest sweetness value in comparison to cane sugar?

(1) Sucralose

(2) Aspartame

(3) Saccharin

(4) Alitame

Answer (4)

Question 5: The methods NOT involved in concentration of ore are

A.  Liquation
B. Leaching
C. Electrolysis
D. Hydraulic washing
E. Froth floatation

Choose the correct answer from the options given below

(1) B, D and C only

(2) B, D and E only

(3) C, D and E only

(4) A and C only

Answer (4)

JEE Main DPP 19 November 2024: Mathematics

Candidates can check out the JEE Main DPP 19 November 2024 daily practice problems for 2025 aspirants from Maths section:

Problem 1: A bag contains 6 balls. Two balls are drawn from it at random and both are found to be black. The probability that the bag contains at least 5 black balls is:

(1) 3/7

(2) 5/6

(3) 2/7

(4) 5/7

Solution (4)

Problem 2: Let R be a relation on N × N defined by (a, b) R (c,d) if and only if ad(b – c) = bc(a – d). Then R is

(1)  symmetric and transitive but not reflexive

(2)  reflexive and symmetric but not transitive

(3)  symmetric but neither reflexive nor transitive

(4)  transitive but neither reflexive nor symmetric

Solution (3)

Problem 3: A wire of length 20 m to be cut into two pieces. A piece of length l1 is bent to make a square of area A1 and the other piece of length l2 is made into a circle of area A2 . If 2A1 + 3A2 is minimum then (pl1) : l2 is equal to

(1) 1 : 6

(2) 3 : 1

(3) 6 : 1

(4) 4 : 1

Solution (3)

Problem 4: If the sum and product of four positive consecutive terms of a G.P., are 126 and 1296, respectively, then the sum of common ratio of all such GPs is

(1) 14

(2) 7

(3) 3

(4) 9/2

Solution (3)

Problem 5: Number of 4-digit numbers that are less than or equal to 2800 and either divisible by 3 or 11, is equal to .

(1) 410

(2) 510

(3) 610

(4) 710

Solution (4)