JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution

JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution: Students who are planning to appear for the JEE Main examination must practice regularly. The JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution are provided here for the candidate's reference. For the Joint Entrance Examination, Main candidates can increase their chances of scoring well by practicing regularly and revising their concepts. By practicing the questions, candidates can prepare for the JEE Main 2025 session 1 exam that will be conducted from January 22 to 31, 2025. Candidates can go through the JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution is available below.

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JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution

Candidates can go through the JEE Mains 20 December Daily Practice Questions for 2025 Session 1 with Solution available here for their reference.

JEE Mains 20 December Daily Physics Practice Questions for 2025 Session 1 with Solution

Q1. A block moving in simple harmonic motion has a maximum potential energy of 25 J. A is the oscillation's amplitude. The block's kinetic energy at A/2 equals

1. 18.75 J
2. 12.5 J
3. 37.5 J
4. 9.75 J

Answer: (A)

Q2. A bar magnet with a 5.0 Am2 magnetic moment is positioned parallel to a 0.4 T magnetic field. The amount of effort needed to rotate the magnet about the field direction from a parallel to an antiparallel position is

1. Zero
2. 1 J
3. 4 J
4. 2 J

Answer: (C)

Q3. An electromagnetic radiation source with 15 kW of power is considered to be in the spectrum if it emits 1016 photons per second. The Planck constant, h, is equal to 6 x 10-34Js.

1. Gamma rays
2. Ultraviolet rays
3. Microwaves
4. Radio waves

Answer: (A)

Q4. A free neutron decays into a proton but a free proton does not decay into a neutron. This is because

1. Neutron has a 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: (A)

Q5. Dropped from the same height are a spherical metallic ball and a spherical insulating ball of the same mass and size. Select the appropriate statement from the list below (Assume little air friction).

1. The duration of their journey to the earth's surface will not be influenced by the characteristics of its constituent materials.
2. The insulating ball will get to the surface of the earth before the metal ball does.
3. The metal ball will get to the surface of the earth before the insulating ball does.
4. Both will arrive at the surface of the earth at the same time.

Answer: (B)

JEE Mains 20 December Daily Chemistry Practice Questions for 2025 Session 1 with Solution

Q1. Regarding the electrolysis of brine solution, which of the following propositions is true?

1. CI2 is formed at the cathode
2. H2 is formed at anode
3. O2 is formed at the cathode
4. OH- is formed at the cathode

Answer: (D)

Q2. The proper arrangement of vanadium oxides' basicity is

1. V203 > V2O5 > V204
2. V204 > V2O3 > V2O5
3. V2O3 > V204 > V2O5
4. V205 > V204 > V203

Answer: (C)

Q3. When compared to cane sugar, which artificial sweetener has the highest sweetness value?

1. Sucralose
2. Aspartame
3. Saccharin
4. Alitame

Answer: (D)

Q4. The techniques that are not used in ore concentration are

1. Liquation
2. Leaching
3. Electrolysis
4. Hydraulic washing
5. Froth floatation

Select the appropriate response from the list 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: (D)

Q5. Which hydrogen spectrum transition would have the same wavelength as the He+ spectrum's Balmer-type transition from n = 4 to n = 2? 

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: (A)

JEE Mains 20 December Daily Mathematics Practice Questions for 2025 Session 1 with Solution

Q1. If and only if ad(b - c) = bc(a - d), then let R be a relation on N × N defined by (a, b) R (c, d). Next, 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

Answer: (C)

Q2. There are six balls in a bag. When two balls are randomly selected from it, they are both discovered to be black. The likelihood that there are at least five black balls in the bag is:

1. 3/7
2. 5/6
3. 2/7
4. 5/7

Answer: (D)

Q3. The number of 4-digit numbers that are divisible by 3 or 11 and less than or equal to 2800 is equal to.

1. 410
2. 510
3. 610
4. 710 

Answer: (D)

Q4: 20 meters of wire that needs to be divided in half. A square of size A1 is created by bending a piece of length 11 and a circle of area A2 is created by bending a piece of length 12. If the minimum is 2A1 + 3A2, then (pl1): 12 equals

1. 1:6
2. 3:1
3. 6:1
4. 4:1

Answer: (C)

Q5. If a G.P.'s four consecutive positive words add up to 126 and 1296, respectively, then the total of all of these GPs' common ratios is

1. 14
2. 7
3. 3
4. (9/2

Answer: (C)

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