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Day 487: JEE Mains Physics

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

  1. Question 1

    Kinetic Theory. Asked once: 29 Jan 2024

    20
    Two vessels A and B are of the same size and are at same temperature. A contains 1 g1\text{ }g of hydrogen and BB contains 1 g1\text{ }g of oxygen. PAP_{A} and PBP_{B} are the pressures of the gases in AA and BB respectively, then PAPB\frac{P_{A}}{P_{B}} is:

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  2. Question 2

    Laws of Motion. Asked once: 5 Apr 2024

    108
    A heavy box of mass 50 kg50\text{ }kg is moving on a horizontal surface. If co-efficient of kinetic friction between the box and horizontal surface is 0.3 then force of kinetic friction is:

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  3. Question 3

    Magnetism and Matter. Asked once: 2021 Paper 24

    11
    Following plots show Magnetization (M) vs Magnetising field (H)(H) and Magnetic susceptibility (χ)(\chi) vs temperature (T)(T) graphs: (a) MM against HH, a straight line through the origin with negative slope; (b) MM against HH, a straight line through the origin with positive slope; (c) χ\chi against TT, a constant negative value at all temperatures; (d) χ\chi against TT, positive and falling as TT rises. Which of the following combination will be represented by a diamagnetic material?

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  4. Question 4

    Mechanical Properties of Fluids. Asked once: 4 Apr 2024

    5
    Given below are two statements: Statement I: When speed of liquid is zero everywhere, pressure difference at any two points depends on equation P1−P2=ρg( h2−h1)P_{1}-P_{2}= \rho g\left( {\text{ }h}_{2}-h_{1} \right) Statement II: In the venturi tube shown 2gh=v12−v222gh =v_{1}^{2}-v_{2}^{2} In the light of the above statements, choose the most appropriate answer from the options given below.

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  5. Question 5

    Mechanical Properties of Solids. Asked once: 29 Jul 2022

    113
    A metal wire of length 0.5 m0.5\text{ }m and cross-sectional area 10−4 m210^{- 4}{\text{ }m}^{2} has breaking stress 5×108Nm−25 \times10^{8}Nm^{- 2}. A block of 10 kg10\text{ }kg is attached at one end of the wire and is rotating in a horizontal circle. The maximum linear velocity of the block will be ____ ms−1\_\_\_\_\ ms^{- 1}.