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Day 73: JEE Mains Physics

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

  1. Question 1

    Units and Measurements. This type asked 3 times: 2021 Paper 22, 4 Apr 2024, 24 Jan 2025. This one: 24 Jan 2025 See all 3 of this type

    92
    The energy EE and momentum pp of a moving body of mass mm are related by some equation. Given that c represents the speed of light, identify the correct equation.

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  2. Question 2

    Motion in a Plane. This type asked 3 times: 28 Jul 2022, 24 Jan 2023, 23 Jan 2025. This one: 23 Jan 2025 See all 3 of this type

    22
    Two particles are located at equal distance from origin. The position vectors of those are represented by A→=2i^+3nj^+2k^\overrightarrow{A}= 2\widehat{i}+ 3n\widehat{j}+ 2\widehat{k} and B→=2i^−2j^+4pk^\overrightarrow{B}= 2\widehat{i}- 2\widehat{j}+ 4p\widehat{k}, respectively. If both the vectors are at right angle to each other, the value of n−1n^{- 1} is ____\_\_\_\_

  3. Question 3

    Dual Nature of Radiation and Matter. This type asked 3 times: 29 Jan 2023, 31 Jan 2023, 22 Jan 2025. This one: 22 Jan 2025 See all 3 of this type

    14
    The work functions of cesium (Cs) and lithium ( Li ) metals are 1.9 eV and 2.5 eV , respectively. If we incident a light of wavelength 550 nm on these two-metal surface, then photo-electric effect is possible for the case of

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  4. Question 4

    Electromagnetic Induction. This type asked 3 times: 2021 Paper 21, 9 Apr 2024, 22 Jan 2025. This one: 22 Jan 2025 See all 3 of this type

    84
    A rectangular metallic loop is moving out of a uniform magnetic field region to a field free region with a constant speed. When the loop is partially inside the magnate field, the plot of magnitude of induced emf(ε)emf(\varepsilon) with time (t)(t) is given by

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  5. Question 5

    Motion in a Plane. This type asked 3 times: 2021 Paper 23, 4 Apr 2024, 9 Apr 2024. This one: 9 Apr 2024 See all 3 of this type

    117
    The resultant of two vectors A→\overrightarrow{A} and B→\overrightarrow{B} is perpendicular to A→\overrightarrow{A} and its magnitude is half that of B→\overrightarrow{B}. The angle between vectors A→\overrightarrow{A} and B→\overrightarrow{B} Is..........