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Day 219: JEE Mains Physics

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

  1. Question 1

    Electrostatics. Asked once: 2021 Paper 18 (same type asked 2 times) See all 2 of this type

    19
    The material filled between the plates of a parallel plate capacitor has resistivity 200Ωm200\Omega m. The value of capacitance of the capacitor is 2pF2pF. If a potential difference of 40 V40\text{ }V is applied across the plates of the capacitor, then the value of leakage current flowing out of the capacitor is : (given the value of relative permitivity of material is 50 )

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  2. Question 2

    Nuclei. Asked once: 2021 Paper 13 (same type asked 2 times) See all 2 of this type

    17
    Mass number of a nucleus is 184. It undergoes alpha decay. If Q value is 5.5MeV5.5MeV, find kinetic energy of the emitted alpha particle.

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  3. Question 3

    Ray Optics. Asked once: 29 Jul 2022 (same type asked 2 times) See all 2 of this type

    29
    The X-Y plane be taken as the boundary between two transparent media M1M_{1} and M2.M1M_{2}.M_{1} in Z≥0Z \geq 0 has a refractive index of 2\sqrt{2} and M2M_{2} with Z<0Z < 0 has a refractive index of 3\sqrt{3}. A ray of light travelling in M1M_{1} along the direction given by the vector A→=43i^−33j^−5k^\overrightarrow{A}= 4\sqrt{3}\widehat{i}- 3\sqrt{3}\widehat{j}- 5\widehat{k}, is incident on the plane of separation. The value of difference between the angle of incident in M1M_{1} and the angle of refraction in M2M_{2} will be_____ degree.

  4. Question 4

    Wave Optics. Asked once: 4 Apr 2026 S1 (same type asked 2 times) See all 2 of this type

    19
    A telescope with objective diameter R is used to observe a distant star emitting light of wavelength 500 nm , at a resolution of 5×10−75 \times10^{- 7} radian. The value of RR is ____\_\_\_\_ cm .

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  5. Question 5

    Electrostatics. Asked once: 29 Jun 2022 (same type asked 2 times) See all 2 of this type

    108
    If the electric potential at any point (x,y,z)m(x,y,z)m in space is given by V=3x2V = 3x^{2} volt. The electric field at the point (1,0,3)m(1,0,3)m will be:

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