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Day 111: JEE Mains Physics

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

  1. Question 1

    Oscillations. This type asked 2 times: 2021 Paper 10, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 2 of this type

    10
    Match List-I with List-II.
    List-IList-II
    (A) sin⁡2ωt\sin^{2}\omega t(I) Periodic with time period T=πωT = \frac{\pi}{\omega} but not simple harmonic motion (SHM)
    (B) sin⁡3(2ωt)\sin^{3}(2\omega t)(II) Periodic with time period T=2πωT = \frac{2\pi}{\omega} but not SHM
    (C) sin⁡(ωt)+cos⁡(πωt)\sin(\omega t) + \cos(\pi\omega t)(III) Periodic with time period T=πωT = \frac{\pi}{\omega} and SHM
    (D) cos⁡ωt+cos⁡2ωt\cos\omega t + \cos 2\omega t(IV) Non-periodic
    Choose the correct answer from the options given below.

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  2. Question 2

    Units and Measurements. This type asked 2 times: 29 Jan 2024, 5 Apr 2026 S2. This one: 5 Apr 2026 S2 See all 2 of this type

    2
    In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10 V and 5 A , respectively. The least counts of voltmeter and ammeter are 500 mV and 200 mA , respectively. The estimated error in the resistance measurement is ____\_\_\_\_ Ω\Omega

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  3. Question 3

    Alternating Current. This type asked 2 times: 30 Jan 2024, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 2 of this type

    19
    An a.c. source of angular frequency ω\omega is connected across a resistor R and a capacitor C in series. The current is observed as I. Now the frequency of the source is changed to ω/4\omega/4, (keeping the voltage unchanged) the current is found to be I/3I/3. The ratio of resistance to reactance at frequency ω\omega is

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  4. Question 4

    Laws of Motion. This type asked 2 times: 5 Apr 2024, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 2 of this type

    4
    Three masses m1=4 kg, m2=4 kgm_{1}= 4\text{ }kg,{\text{ }m}_{2}= 4\text{ }kg and m3=6 kgm_{3}= 6\text{ }kg are suspended from a fixed smooth frictionless pulley as shown in the figure below. The value of T1/T2T_{1}/T_{2} is ____\_\_\_\_ . (take g=10 m/s2g = 10\text{ }m/s^{2} )

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  5. Question 5

    Thermodynamics. This type asked 2 times: 22 Jan 2025, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 2 of this type

    8
    Consider the following statements: (A) Zeroth law of thermodynamics gives concept of temperature (B) First law of thermodynamics gives concept of internal energy (C) In isothermal expansion of ideal gas, ΔQ≠ΔW\Delta Q \neq \Delta W (D) Product of intensive and extensive variables is extensive (E) The ratio of any extensive variable to mass will be an extensive variable Choose the correct combination of statements from the options given below:

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