PYQ Vault
EbooksTutor

Day 386: JEE Mains Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. Asked once: 6 Apr 2024 (same type asked 5 times) See all 5 of this type

    20
    In photoelectric experiment energy of 2.48eV2.48eV irradiates a photo sensitive material. The stopping potential was measured to be 0.5 V0.5\text{ }V. Work function of the photo sensitive material is :

    Tap an option to check your answer.

  2. Question 2

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

    116
    The displacement current of 4.425μA4.425\mu A is developed in the space between the plates of parallel plate capacitor when voltage is changing at a rate of 10610^{6} Vs−1Vs^{- 1}. The area of each plate of the capacitor is 40 cm2cm^{2}. The distance between each plate of the capacitor is x×10−3 mx \times10^{- 3}\text{ }m. The value of xx is, (Permittivity of free space, ε0=8.85×10−12C2 N−1 m−2\varepsilon_{0}= 8.85 \times10^{- 12}C^{2}{\text{ }N}^{- 1}{\text{ }m}^{- 2} )

  3. Question 3

    Wave Optics. Asked once: 28 Jun 2022 (same type asked 5 times) See all 5 of this type

    113
    In a Young's double slit experiment, an angular width of the fringe is 0.35∘0.35^{\circ} on a screen placed at 2 mm away for particular wavelength of 50 nm50\text{ }nm. The angular width of the fringe, when whole system is immersed in a medium of refractive index 7/57/5, is 1α\frac{1}{\alpha}. The value of α\alpha is

  4. Question 4

    Mechanical Properties of Solids. Asked once: 14 Jun 2022 (same type asked 5 times) See all 5 of this type

    1
    The bulk modulus of a liquid is 3×1010Nm−23 \times10^{10}Nm^{- 2}. The pressure required to reduce the volume of liquid by 2%2\% is:

    Tap an option to check your answer.

  5. Question 5

    Units and Measurements. Asked once: 2021 Paper 21 (same type asked 5 times) See all 5 of this type

    15
    If force (F), length (L)(L) and time (T) are taken as the fundamental quantities. Then what will be the dimension of density:

    Tap an option to check your answer.