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Day 514: JEE Mains Physics

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

  1. Question 1

    Mechanical Properties of Fluids. Asked once: 8 Apr 2023

    98
    A hydraulic automobile lift is designed to lift vehicles of mass 5000 kg5000\text{ }kg. The area of cross section of the cylinder carrying the load is 250 cm2250{\text{ }cm}^{2}. The maximum pressure the smaller piston would have to bear is [Assume g=10 m/s2g = 10\text{ }m/s^{2} ]:

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  2. Question 2

    Motion in a Plane. Asked once: 30 Jan 2024

    115
    A vector has magnitude same as that of A→=3i^+4j^\overrightarrow{A} = 3\widehat{i}+ 4\widehat{j} and is parallel to B→=4i^+3j^\overrightarrow{B}= 4\widehat{i}+ 3\widehat{j}. The xx and yy components of this vector in first quadrant are xx and 3 respectively where x=x = _______

  3. Question 3

    Motion in a Straight Line. Asked once: 27 Jan 2024

    114
    A body falling under gravity covers two points A and B separated by 80 m in 2 s. The distance of upper point AA from the starting point is _____ mm (use g=10 ms−2g = 10{\text{ }ms}^{- 2} )

  4. Question 4

    Moving Charges and Magnetism. Asked once: 29 Jan 2023

    20
    The magnitude of magnetic induction at mid-point OO due to current arrangement as shown in Fig will be

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  5. Question 5

    Nuclei. Asked once: 24 Jan 2023

    9
    Consider the following radioactive decay process The mass number and the atomic number of A6A_{6} are given by:

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