PYQ Vault
EbooksTutor

Day 380: JEE Mains Physics

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

  1. Question 1

    Mechanical Properties of Fluids. Asked once: 28 Jun 2022 (same type asked 6 times) See all 6 of this type

    118
    A liquid of density 750kgm−3750kgm^{- 3} flows smoothly through a horizontal pipe that tapers in crosssectional area from A1=1.2×10−2 m2A_{1}= 1.2 \times10^{- 2}{\text{ }m}^{2} to A2=A12A_{2}=\frac{A_{1}}{2}. The pressure difference between the wide and narrow sections of the pipe is 4500 Pa4500\text{ }Pa. The rate of flow of liquid is ____×10−3 m3 s−1\_\_\_\_\times10^{- 3}{\text{ }m}^{3}{\text{ }s}^{- 1}.

  2. Question 2

    Moving Charges and Magnetism. Asked once: 25 Jan 2023 (same type asked 6 times) See all 6 of this type

    111
    Two long parallel wires carrying currents 8 A8\text{ }A and 15 A15\text{ }A in opposite directions are placed at a distance of 7 cm7\text{ }cm from each other. A point PP is at equidistant from both the wires such that the lines joining the point PP to the wires are perpendicular to each other. The magnitude of magnetic field at PP is _______×10−6 T\_\_\_\_\_\_\_ \times 10^{- 6}\text{ }T (Given: 2=1.4\sqrt{2}= 1.4 )

  3. Question 3

    Units and Measurements. Asked once: 23 Jan 2025 (same type asked 6 times) See all 6 of this type

    8
    The position of a particle moving on xx-axis is given by x(t)=Asin⁡t+Bcos⁡2t+Ct2+Dx(t) = A\sin t + B\cos^{2}t + Ct^{2}+ D, where tt is time. The dimension of ABCD\frac{ABC}{D} is-

    Tap an option to check your answer.

  4. Question 4

    Mechanical Properties of Solids. Asked once: 26 Jun 2022 (same type asked 6 times) See all 6 of this type

    23
    The elastic behaviour of material for linear stress and linear strain, is shown in the figure. The energy density for a linear strain of 5×10−45 \times10^{- 4} is ____ kJ/m3\_\_\_\_\ kJ/m^{3}. Assume that material is elastic upto the linear strain of 5×10−45 \times10^{- 4}.

  5. Question 5

    Gravitation. Asked once: 2021 Paper 26 (same type asked 6 times) See all 6 of this type

    27
    In the reported figure of earth, the value of acceleration due to gravity is same at point AA and CC but it is smaller than that of its value at point BB (surface of the earth). The value of OA:ABOA:AB will be x:yx:y. The value of xx is