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Day 195: JEE Mains Physics

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

  1. Question 1

    Motion in a Plane. Asked once: 24 Jan 2023 (same type asked 3 times) See all 3 of this type

    5
    The maximum vertical height to which a man can throw a ball is 136 m136\text{ }m. The maximum horizontal distance upto which he can throw the same ball is:

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  2. Question 2

    Motion in a Straight Line. Asked once: 2021 Paper 25 (same type asked 3 times) See all 3 of this type

    28
    A boy pushes a box of mass 2 kg2\text{ }kg with a force F→=(20i^+10j^)N\overrightarrow{F}= (20\widehat{i}+ 10\widehat{j})N on a frictionless surface. If the box was initially at rest, then ___ mm is displacement along the xx-axis after 10 s10\text{ }s.

  3. Question 3

    Mechanical Properties of Solids. Asked once: 27 Jul 2022 (same type asked 3 times) See all 3 of this type

    97
    A steel wire of length 3.2 m(YS=2.0×1011Nm−2)3.2\text{ }m\left( Y_{S}= 2.0 \times10^{11}Nm^{- 2} \right) and a copper wire of length 4.4 m4.4\text{ }m (YC=1.1×1011Nm−2)\left( Y_{C}= 1.1 \times10^{11}Nm^{- 2} \right), both of radius 1.4 mm1.4\text{ }mm are connected end to end. When stretched by a load, the net elongation is found to be 1.4 mm1.4\text{ }mm. The load applied, in Newton, will be: (Given π=227\pi =\frac{22}{7} )

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  4. Question 4

    Moving Charges and Magnetism. Asked once: 1 Feb 2024 (same type asked 3 times) See all 3 of this type

    10
    A galvanometer has a resistance of 50Ω50\Omega and it allows maximum current of 5 mA5\text{ }mA. It can be converted into voltmeter to measure upto 100 V100\text{ }V by connecting in series a resistor of resistance

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  5. Question 5

    Work, Energy and Power. Asked once: 22 Jan 2025 (same type asked 3 times) See all 3 of this type

    89
    A force F→=2i^+bj^+k^\overrightarrow{F}= 2\widehat{i}+ b\widehat{j}+\widehat{k} is applied on a particle and it undergoes a displacement i^−2j^−k^\widehat{i}- 2\widehat{j}-\widehat{k}. What will be the value of bb, if work done on the particle is zero.

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