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Day 452: JEE Mains Physics

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

  1. Question 1

    Thermodynamics. Asked once: 28 Jan 2026 S1

    12
    In the following pp - VV diagram the equation of state along the curved path is given by (V−2)2=4ap(V- 2)^{2}= 4ap where aa is a constant. The total work done in the closed path is

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  2. Question 2

    Units and Measurements. Asked once: 22 Jan 2026 S2

    1
    If ∈,E\in ,E and t represent the free space permittivity, electric field and time respectively, then the unit of ∈Et\frac{\in E}{t} will be :

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  3. Question 3

    Wave Optics. Asked once: 2 Apr 2025

    1
    A light wave is propagating with plane wave fronts of the type x+y+z=x+y+z= constant. The angle made by the direction of wave propagation with the x -axis is :

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  4. Question 4

    Waves. Asked once: 7 Apr 2025

    1
    Two harmonic waves moving in the same direction superimpose to form a wave x=acos(1.5t)cos⁡(50.5t)x=acos(1.5t)\cos(50.5t) where tt is in seconds. Find the period with which they beat (close to nearest integer)

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  5. Question 5

    Work, Energy and Power. Asked once: 23 Jan 2026 S1

    7
    Two blocks with masses 100 g and 200 g are attached to the ends of springs A and B as shown in figure. The energy stored in A is E . The energy stored in B , when spring constants kA,kBk_{A},k_{B} of A and BB, respectively satisfy the relation 4kA=3kB4k_{A}= 3k_{B}, is :

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