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Day 572: JEE Mains Physics

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

  1. Question 1

    Electrostatics. Asked once: 23 Jan 2025

    11
    A point particle of charge QQ is located at PP along the axis of an electric dipole 1 at a distance rr as shown in the figure. The point P is also on the equatorial plane of a second electric dipole 2 at a distance rr. The dipoles are made of opposite charge qq separated by a distance 2a2a. For the charge particle at P not to experience any net force, which of the following correctly describes the situation?

    Tap an option to check your answer.

  2. Question 2

    Laws of Motion. Asked once: 25 Jul 2022

    22
    Four forces are acting at a point PP in equilibrium as shown in figure. The ratio of force F1F_{1} to F2F_{2} is 1:x1:x where x=x =

  3. Question 3

    Motion in a Plane. Asked once: 26 Jun 2022

    21
    A fighter jet is flying horizontally at a certain altitude with a speed of 200 ms−1200{\text{ }ms}^{- 1}. When it passes directly overhead an anti-aircraft gun, bullet is fired from the gun, at an angle θ\theta with the horizontal, to hit the jet. If the bullet speed is 400 ms\frac{m}{s}, the value of θ\theta will be..._____  ∘\ ^{\circ}

  4. Question 4

    Motion in a Straight Line. Asked once: 28 Jul 2022

    111
    A ball is thrown vertically upwards with a velocity of 19.6 ms−119.6{\text{ }ms}^{- 1} from the top of a tower. The ball strikes the ground after 6 s6\text{ }s. The height from the ground up to which the ball can rise will be (k5)m\left( \frac{k}{5} \right)m. The value of kk is .... (use g=9.8 m/s2g = 9.8\text{ }m/s^{2}

  5. Question 5

    Ray Optics. Asked once: 24 Jan 2023

    25
    As shown in the figure, a combination of a thin plano concave lens and a thin plano convex lens is used to image an object placed at infinity. The radius of curvature of both the lenses is 30 cm30\text{ }cm and refraction index of the material for both the lenses is 1.75. Both the lenses are placed at distance of 40 cm40\text{ }cm from each other. Due to the combination, the image of the object is formed at a distance of ____\_\_\_\_ cm from the concave lens.