JEE Main DPP 30 October 2024: Daily practice problems for 2025 aspirants

JEE Main DPP 30 October 2024

JEE Main DPP 30 October 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 30 October 2024 that include five questions from each subject: Mathematics, Physics, and Chemistry.

JEE Main DPP 30 October 2024: Physics

Candidates can check out the JEE Main DPP 30 October 2024 daily practice problems for 2025 aspirants from the Physics section:

Question 1: Wire A and B have their Young’s modulus in the ratio 1 : 3, area of the cross-section in the ratio of 1:2 and lengths in the ratio of 3:4. If the same force is applied on the two wires to elongate the ratio of elongation is equal to

(1) 8:1

(2) 1:12

(3) 1:8

(4) 9:2

Answer (4)

Question 2: Consider two statements:

Statement 1: Magnetic susceptibility of diamagnetic substance is –1 £ x < 0.

Statement 2: Diamagnetic substance moves from stronger to weaker magnetic field.

(1)  Both statements are correct

(2)  Both are incorrect

(3)  Statement 1 is Correct and Statement 2 is incorrect

(4) Statement 1 is Incorrect and Statement 2 is correct

Answer (1)

Question 3: When an electric field is applied to the electrons in a conductor it starts

(1) Moving in straight line

(2)  Drifting from higher potential to lower potential

(3)  Drifting from lower potential to higher potential

(4)  Moving with constant velocity

Answer (3)

Question 4: In a mixture 0.5 moles of O2 and 4 moles of Ne gas are taken at temperature T. The internal energy of the system is equal to

(1) (13/2)RT

(2) (11/4)RT

(3) (29/4)RT

(4) (13/4)RT

Answer (3)

Question 5: A metallic slab of thickness 2d/3  and area of surface same as that of plates of the capacitor of capacitance C1 is inserted parallel to plates of a capacitor such that its new capacitance becomes equal to C2. If d is the space width between the two plates, then C2/ C1 equal to

(1) 1

(2) 2

(3) 3

(4) 4

Answer (3)

JEE Main DPP 30 October 2024: Chemistry

Candidates can check out the JEE Main DPP 30 October 2024 daily practice problems for 2025 aspirants from the Chemistry section:

Question 1: Delicate balance of CO2 and O2 is not disturbed by

(1) Deforestation

(2) Photosynthesis

(3) Burning of coal

(4) Burning of petroleum

Answer (2)

Question 2: During bleeding from a cut FeCl3 is used to stop bleeding as

(1) Cl– cause coagulation

(2)  Ferric ion cause coagulation

(3)  FeCl3 dilutes blood

(4) Bleeding does not stop

Answer (2)

Question 3: Water of crystallization in Soda ash and washing soda is respectively.

(1) 0,10

(2) 10,0

(3) 0,0

(4) 0,1

Answer (1)

Question 4: What process is used to make soap from fat?

(1)  Saponification

(2)  Electrolysis

(3)  Solvay process

(4) Haber process

Answer (1)

Question 5: Assertion: Higher energy is required for the conversion of Mg to Mg2– than that for Mg to Mg–.
Reason: Mg2– has a very small size and more charge.

(1)  Both Assertion and Reason are correct and Reason is the correct explanation of Assertion

(2) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion

(3)  Assertion is correct but Reason is incorrect

(4)  Assertion is incorrect but Reason is correct

Answer (3)

JEE Main DPP 30 October 2024: Mathematics

Candidates can check out the JEE Main DPP 30 October 2024 daily practice problems for 2025 aspirants from Maths section:

Problem 1: Let a circle x2 + y2 = 16 and the line passing through (1, 2) cuts the curve at A and B then the locus of the midpoint of AB is

(1)  x2 + y2 + x + y = 0

(2) x2 + y2 – x + 2y = 0

(3) x2 + y2 – x – 2y = 0

(4) x2 + y2 + x + 2y = 0

Solution (3)

Problem 2: 8 persons have to travel from A to B in 3 allotted cars. If a car can carry a maximum of 3 persons. Then find the number of ways they can travel.

(1) 1880

(2) 1800

(3) 1680

(4) 1600

Solution (3)

Problem 3: If a dice is thrown n-times and probability of getting 7 times odd is equal to 9 times even. Then P(2 even) is K/ 215 then K is

1) 58

(2) 60

(3) 48

(4) 65

Solution (2)

Problem 4: y = f(x) is a quadratic function passing through (–1, 0) and tangent to it at (1, 1) is y = x. Find x intercept by normal at point (a, a + 1), (a > 0)

(1) 7

(2) –7

(3) 5

(4) –5

Solution (1)

Problem 5: The modulus of the complex numbers z=4+3i is:

(1) 5

(2) 7

(3) 10

(4) 25

Solution (1)