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Day 284: JEE Mains Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: 24 Jan 2025 (same type asked 4 times) See all 4 of this type

    17
    An electron of mass ' mm ' with an initial velocity v→=v0i^(v0>0)\overrightarrow{v}=v_{0}\widehat{i}\left( v_{0}> 0 \right) enters an electric field E→=−E0k^\overrightarrow{E}= -E_{0}\widehat{k}. If the initial de Broglie wavelength is λ0\lambda_{0}, the value after time tt would be :-

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  2. Question 2

    Mechanical Properties of Fluids. Asked once: 10 Apr 2023 (same type asked 4 times) See all 4 of this type

    114
    Figure below shows a liquid being pushed out of the tube by a piston having area of cross section 2.0 cm22.0{\text{ }cm}^{2}. The area of cross section at the outlet is 10 mm210{\text{ }mm}^{2}. If the piston is pushed at a speed of 4 cm s−14\text{ }cm{\text{ }s}^{- 1}, the speed of outgoing fluid is ____ cm s−1\_\_\_\_\ cm\ s^{- 1}.

  3. Question 3

    Motion in a Plane. Asked once: 27 Jan 2024 (same type asked 4 times) See all 4 of this type

    1
    Position of an ant (SS in metres) moving in Y−ZY - Z plane is given by S=2t2j^+5k^S = 2t^{2}\widehat{j} + 5\widehat{k} (where tt is in second). The magnitude and direction of velocity of the ant at t=1 st = 1\text{ }s will be:

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  4. Question 4

    Motion in a Plane. Asked once: 10 Apr 2023 (same type asked 4 times) See all 4 of this type

    107
    Two projectiles are projected at 30∘30^{\circ} and 60∘60^{\circ} with the horizontal with the same speed. The ratio of the maximum height attained by the two projectiles respectively is:

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  5. Question 5

    Work, Energy and Power. Asked once: 31 Jan 2024 (same type asked 4 times) See all 4 of this type

    108
    A body of mass 2 kg2\text{ }kg begins to move under the action of a time dependent force given by F→=(6ti^+6t2j^)N\overrightarrow{F}=\left( 6t\widehat{i}+ 6t^{2}\widehat{j} \right)N. The power developed by the force at the time tt is given by:

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