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Day 438: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Electrostatics. Asked once: 4 Apr 2026 S2

    12
    From the circuit given below, the capacitance between terminals A and B shown in the circuit is ____\_\_\_\_ μF\mu F. (take C1=C2=C3=1μ FC_{1}=C_{2}=C_{3}= 1\mu\text{ }F and C4=2μ FC_{4}= 2\mu\text{ }F.)

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  2. Question 2

    Gravitation. Asked once: 3 Apr 2025

    21
    Three identical spheres of mass mm, are placed at the vertices of an equilateral triangle of length a. When released, they interact only through gravitational force and collide after a time T=4T = 4 seconds. If the sides of the triangle are increased to length 2 a and also the masses of the spheres are made 2 m , then they will collide after ____\_\_\_\_ seconds.

  3. Question 3

    Kinetic Theory. Asked once: 4 Apr 2026 S2

    8
    Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: If the average kinetic energy of H2H_{2} and O2O_{2} molecules, kept in two different sized containers are same, then their temperatures will be same. Reason R: The r.m.s. speed of H2H_{2} and O2O_{2} molecules are same at same temperature. Choose the correct answer from the options given below

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  4. Question 4

    Laws of Motion. Asked once: 5 Apr 2026 S1

    5
    A wedge Y with mass of 10 kg and all frictionless surfaces and the inclined surface making 37∘37^{\circ} with horizontal. A block X with mass 2 kg is placed at the highest point of the wedge as shown in figure is at rest. At t=0t = 0 wedge (Y) is pulled toward right with constant force (f)(f) of 24 N . Taking the block X at rest at t=0t = 0, the time taken by it to slide down 8.8 m on the slope, while Y is on the move, is ____\_\_\_\_ s. (take tan⁡(37∘)=3/4\tan\left( 37^{\circ} \right)= 3/4 and g=10 m/s2g = 10\text{ }m/s^{2} )

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  5. Question 5

    Magnetism and Matter. Asked once: 4 Apr 2026 S2

    14
    A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0 T. The magnetic intensity in SI units is α×105\alpha\times10^{5}. The value of α\alpha is ____\_\_\_\_ . (Free space permeability μ0=4π×10−7\mu_{0}= 4\pi\times10^{- 7} SI units).

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