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Day 344: JEE Mains Physics

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

  1. Question 1

    Mechanical Properties of Solids. Asked once: 1 Feb 2023 (same type asked 5 times) See all 5 of this type

    22
    A certain pressure ' PP ' is applied to 1 litre of water and 2 litre of a liquid separately. Water gets compressed to 0.01%0.01\% whereas the liquid gets compressed to 0.03%0.03\%. The ratio of Bulk modulus of water to that of the liquid is 3x\frac{3}{x}. The value of xx is ____\_\_\_\_.

  2. Question 2

    Units and Measurements. Asked once: 2021 Paper 23 (same type asked 5 times) See all 5 of this type

    11
    If velocity [V]\lbrack V\rbrack, time [T]\lbrack T\rbrack and force [F]\lbrack F\rbrack are chosen as the base quantities, the dimensions of the mass will be:

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  3. Question 3

    Wave Optics. Asked once: 6 Apr 2023 (same type asked 5 times) See all 5 of this type

    117
    A beam of light consisting of two wavelengths 7000Å7000\text{Å} and 5500Å5500\text{Å} is used to obtain interference pattern in Young's double slit experiment. The distance between the slits is 2.5 mm2.5\text{ }mm and the distance between the plane of slits and the screen is 150 cm150\text{ }cm. The least distance from the central fringe, where the bright fringes due to both the wavelengths coincide, is n×10−5 mn \times10^{- 5}\text{ }m. The value of nn is___

  4. Question 4

    Ray Optics. Asked once: 28 Jan 2025 (same type asked 5 times) See all 5 of this type

    88
    A concave mirror produces an image of an object such that the distance between the object and image is 20 cm . If the magnification of the image is ' -3 ', then the magnitude of the radius of curvature of the mirror is :

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  5. Question 5

    Current Electricity. Asked once: 29 Jun 2022 (same type asked 5 times) See all 5 of this type

    114
    Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance 2000Ω2000\Omega is used to measure the potential difference across 500Ω500\Omega resister, the reading of the voltmeter will be ____\_\_\_\_ V.