JEE Main PYQs on The Angular Momentum: JEE Main Questions for Practice with Solutions

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Shivam Yadav

Educational Content Expert | Updated on - Sep 4, 2025

The JEE Main Physics section requires speed and accuracy, along with a thorough understanding of the The Angular Momentum. This article provides a set of JEE Main PYQs on The Angular Momentum to help you understand the topic and improve your problem-solving skills with the help of detailed solutions by ensuring conceptual clarity, which will help you in the JEE Main 2026 preparation.

Whether you're revising the basics or testing your knowledge, these JEE Main PYQs will serve as a valuable practice resource.

The JEE Main 2026 exam is likely to continue on the same pattern as JEE Main 2025. Out of 90 questions, students can expect a fair mix from all three subjects. To get an edge, going through JEE Main previous year questions (PYQs) is one of the best strategies.

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JEE Main PYQs on The Angular Momentum

  • 1.
    If radius of earth reduced by one fourth of its present value, then duration of days will be

      • 13 hours and 30 mins
      • 13 hours and 20 mins
      • 18 hours and 20 mins
      • 16 hours and 10 mins

    • 2.
      Angular momentum of an electron in an orbit of radius R of a hydrogen atom is directly proportional to

        • R
        • 1/R
        • 1/√R
        • √R

      • 3.
        Three equal masses \( m \) are kept at vertices (A, B, C) of an equilateral triangle of side \( a \) in free space. At \( t = 0 \), they are given an initial velocity \( \vec{V_A} = V_0 \hat{AC}, \, \vec{V_B} = V_0 \hat{BA}, \, \vec{V_C} = V_0 \hat{CB} \).
        Three equal masses m are kept at vertices (A, B, C) of an equilateral triangle
        Here, \( \hat{AC}, \hat{CB}, \hat{BA} \) are unit vectors along the edges of the triangle. If the three masses interact gravitationally, then the magnitude of the net angular momentum of the system at the point of collision is:

          • \( \frac{1}{2} a m v_0 \)
          • \( 3 am v_0 \)
          • \( \frac{\sqrt{3}}{2} am v_0 \)
          • \( \frac{3}{2} am v_0 \)

        • 4.
          Two planets of mass m1 and m2 are revolving around their orbits r and r2 respectively. Angular momentum of planets are in ratio of 3 then T1/T2 is___
          (T1 and T2 are periods of revolutions)

            • \(27 (\frac{m_2}{m_1})^3\)
            • \(\frac{1}{27} (\frac{m_2}{m_1})^3\)
            • \((\frac{r_1}{r_2})^3\)
            • \((\frac{r_2}{r_1})^\frac{3}{2}\)

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