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Day 19: JEE Mains Physics

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

  1. Question 1

    Work, Energy and Power. Asked 5 times: 2021 Paper 9, 2021 Paper 12, 2021 Paper 17*, 30 Jan 2023*, 5 Apr 2024 (* = numbers or wording changed that year) See all 5 times it was asked

    103
    A body is moving unidirectionally under the influence of a constant power source. Its displacement in time tt is proportional to:

    Tap an option to check your answer.

  2. Question 2

    Motion in a Straight Line. This type asked 5 times: 29 Jun 2022, 30 Jan 2024, 4 Apr 2024, 5 Apr 2024, 8 Apr 2026 S2. This one: 8 Apr 2026 S2 See all 5 of this type

    25
    Two masses of 3.4 kg and 2.5 kg are accelerated from an initial speed of 5 m/s5\text{ }m/s and 12 m/s12\text{ }m/s, respectively. The distances traversed by the masses in the 5th 5^{\text{th~}} second are 104 m and 129 m , respectively. The ratio of their momenta after 10 s is x8\frac{x}{8}. The value of xx is ____\_\_\_\_ .

  3. Question 3

    Dual Nature of Radiation and Matter. This type asked 5 times: 2021 Paper 19, 25 Jan 2023, 30 Jan 2023, 15 Apr 2023, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 5 of this type

    22
    The de Broglie wavelength for an electron accelerated through the potential difference V1V_{1} volt is λ1\lambda_{1}. When the potential difference is changed to V2V_{2} volt, the associated de Broglie wavelength is increased by 50%50\%. If (V1/V2)=(9/α)\left( V_{1}/V_{2} \right) = (9/\alpha), then the value of α\alpha is ____\_\_\_\_ .

  4. Question 4

    Laws of Motion. This type asked 5 times: 2021 Paper 24, 29 Jan 2023, 8 Apr 2024, 4 Apr 2026 S1, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 5 of this type

    21
    A block takes tt time to slide down a plane inclined at 45∘45^{\circ} to the horizontal. If the surface is made smooth (frictionless), the block takes times t2\frac{t}{2} to slide down the plane. The coefficient of friction between the block and the inclined plane is (α100)\left( \frac{\alpha}{100} \right) . The value of α\alpha is ____\_\_\_\_.

  5. Question 5

    Mechanical Properties of Solids. This type asked 5 times: 2021 Paper 19, 2021 Paper 21, 26 Jul 2022, 5 Apr 2026 S1, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 5 of this type

    5
    A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is 4×108 N/m24 \times10^{8}\text{ }N/m^{2} and its radius is 4 mm , then maximum acceleration the lift can take is ____\_\_\_\_ m/s2m/s^{2}. (take g=10 m/s2g = 10\text{ }m/s^{2} and π=3.14\pi= 3.14 )

    Tap an option to check your answer.