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Day 291: JEE Mains Physics

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

  1. Question 1

    Motion in a Plane. Asked once: 29 Jan 2023 (same type asked 4 times) See all 4 of this type

    108
    An object moves at a constant speed along a circular path in a horizontal plane with center at the origin. When the object is at x=+2 mx = + 2\text{ }m, its velocity is −4ȷ^ m/s- 4\widehat{\jmath}\text{ }m/s. The object's velocity (v) and acceleration (a)(a) at x=−2 mx = - 2\text{ }m will be

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  2. Question 2

    Mechanical Properties of Fluids. Asked once: 8 Apr 2024 (same type asked 4 times) See all 4 of this type

    26
    A liquid column of height 0.04 cm0.04\text{ }cm balances excess pressure of soap bubble of certain radius. If density of liquid is 8×103 kg m−38 \times10^{3}\text{ }kg{\text{ }m}^{- 3} and surface tension of soap solution is 0.28Nm−10.28Nm^{- 1}, then diameter of the soap bubble is _____ cmcm. (if g=10 ms−2g= 10{\text{ }ms}^{- 2} )

  3. Question 3

    Moving Charges and Magnetism. Asked once: 2021 Paper 15 (same type asked 4 times) See all 4 of this type

    16
    Two particles having identical masses and charges 2Q and Q are moving with velocities VV and 2 V2\text{ }V respectively, In uniform magnetic field BB. Find ratio of the radius of circle describe by them

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  4. Question 4

    Moving Charges and Magnetism. Asked once: 24 Jan 2023 (same type asked 4 times) See all 4 of this type

    116
    A single turn current loop in the shape of a right-angle triangle with sides 5 cm,12 cm,13 cm5\text{ }cm,12\text{ }cm,13\text{ }cm is carrying a current of 2 A2\text{ }A. The loop is in a uniform magnetic field of magnitude 0.75 T0.75\text{ }T whose direction is parallel to the current in the 13 cm13\text{ }cm side of the loop. The magnitude of the magnetic force on the 5 cm5\text{ }cm side will be x130 N\frac{x}{130}\text{ }N. The value of xx is

  5. Question 5

    Electrostatics. Asked once: 1 Feb 2023 (same type asked 4 times) See all 4 of this type

    2
    Let σ\sigma be the uniform surface charge density of two infinite thin plane sheets shown in figure. Then the electric fields in three different region EI,EIIE_{I},E_{II} and EIIIE_{III} are:

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