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Day 5: JEE Mains Physics

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

  1. Question 1

    Wave Optics. This type asked 8 times: 30 Jan 2023, 10 Apr 2023, 29 Jan 2024, 1 Feb 2024, 9 Apr 2024, 2 Apr 2026 S2, 6 Apr 2026 S1, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 8 of this type

    20
    In a Young double slit experiment, the wavelength of the incident light is 6000Å6000\text{Å}, the separation between slits S1S_{1} and S2S_{2} is 5 cm, the distance between slits plane and screen is 50 cm , as shown in the figure below. If the resultant intensity at P is equal to the intensity due to individual slits, the path difference between interfering waves is ____\_\_\_\_ Å.

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  2. Question 2

    Ray Optics. This type asked 8 times: 8 Apr 2023, 31 Jan 2024, 23 Jan 2025, 28 Jan 2025, 29 Jan 2025, 2 Apr 2025, 3 Apr 2025, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 8 of this type

    16
    A spherical interface lens of radius R separates two media of refractive indices 1 and 1.4 respectively as shown in the figure below. A point source is placed at a distance of 4 R in front of spherical interface. The magnitude of the magnification of point source image is ____\_\_\_\_ .

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  3. Question 3

    Units and Measurements. This type asked 8 times: 2021 Paper 7, 2021 Paper 23, 29 Jun 2022, 26 Jul 2022, 27 Jul 2022, 10 Apr 2023, 28 Jan 2026 S1, 5 Apr 2026 S1. This one: 5 Apr 2026 S1 See all 8 of this type

    1
    In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero of the main scale and 7th 7^{\text{th~}} Vernier division coincides with a main scale reading. If the value of 1 main scale division is 1 mm and there are 10 Vernier scale divisions, then the Vernier caliper has

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  4. Question 4

    Dual Nature of Radiation and Matter. This type asked 8 times: 2021 Paper 3, 2021 Paper 6, 2021 Paper 14, 25 Jul 2022, 29 Jul 2022, 29 Jan 2023, 12 Apr 2023, 4 Apr 2026 S2. This one: 4 Apr 2026 S2 See all 8 of this type

    19
    The de Broglie wavelength associated with an electron accelerated through a potential difference V is λe\lambda_{e} and the de Broglie wavelength associated with a proton accelerated through the same potential difference is λp\lambda_{p}. If their corresponding masses are mem_{e} and mpm_{p}, respectively, then the ratio of their de Broglie wavelengths (λeλp)\left( \frac{\lambda_{e}}{\lambda_{p}} \right) is ____\_\_\_\_ .

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  5. Question 5

    Gravitation. This type asked 8 times: 14 Jun 2022, 25 Jun 2022, 25 Jul 2022, 24 Jan 2023, 31 Jan 2023, 6 Apr 2023, 4 Apr 2024, 4 Apr 2026 S2. This one: 4 Apr 2026 S2 See all 8 of this type

    5
    The height in terms of radius of the earth (R)(R), at which the acceleration due to gravity becomes g9\frac{g}{9}, where gg is acceleration due to gravity on earth's surface, is ____\_\_\_\_ .

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