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Day 283: JEE Mains Physics

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

  1. Question 1

    Oscillations. Asked once: 25 Jan 2023 (same type asked 4 times) See all 4 of this type

    105
    A particle executes simple harmonic motion between x=−Ax = - A and x=+Ax = + A. If time taken by particle to go from x=0x = 0 to A2\frac{A}{2} is 2 s2\text{ }s; then time taken by particle in going from x=A2x =\frac{A}{2} to AA is

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  2. Question 2

    Units and Measurements. Asked once: 8 Apr 2023 (same type asked 4 times) See all 4 of this type

    19
    A cylindrical wire of mass (0.4±0.01)g(0.4 \pm 0.01)g has length (8±0.04)cm(8 \pm 0.04)cm and radius (6±0.03)mm(6 \pm 0.03)mm. The maximum error in its density will be

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  3. Question 3

    Current Electricity. Asked once: 14 Jun 2022 (same type asked 4 times) See all 4 of this type

    3
    Two identical cells each of emf 1.5 V1.5\text{ }V are connected in parallel across a parallel combination of two resistors each of resistance 20Ω20\Omega. A voltmeter connected in the circuit measures 1.2 V1.2\text{ }V. The internal resistance of each cell is

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  4. Question 4

    Ray Optics. Asked once: 12 Apr 2023 (same type asked 4 times) See all 4 of this type

    28
    Two convex lenses of focal length 20 cm20\text{ }cm each are placed coaxially with a separation of 60 cm60\text{ }cm between them. The image of the distant object formed by the combination is at_____ cmcm from the first lens.

  5. Question 5

    System of Particles and Rotational Motion. Asked once: 8 Apr 2023 (same type asked 4 times) See all 4 of this type

    116
    A hollow spherical ball of uniform density rolls up a curved surface with an initial velocity 3 m/s3\text{ }m/s (as shown in figure). Maximum height with respect to the initial position covered by it will be ___cmcm.