PYQ Vault
EbooksTutor

Day 192: JEE Mains Physics

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

  1. Question 1

    Electrostatics. Asked once: 13 Apr 2023 (same type asked 3 times) See all 3 of this type

    113
    Three-point charges q,−2qq, - 2q and 2q2q are placed on xx-axis at a distance x=0,x=34Rx= 0,x=\frac{3}{4}R and x=Rx=R respectively from origin as shown. If q=2×10−6Cq = 2 \times10^{- 6}C and R=2 cmR = 2\text{ }cm, the magnitude of net force experienced by the charge −2q- 2q is____ N.

  2. Question 2

    Moving Charges and Magnetism. Asked once: 8 Apr 2023 (same type asked 3 times) See all 3 of this type

    1
    A charge particle moving in magnetic field BB, has the components of velocity along BB as well as perpendicular to BB. The path of the charge particle will be

    Tap an option to check your answer.

  3. Question 3

    Moving Charges and Magnetism. Asked once: 4 Apr 2026 S2 (same type asked 3 times) See all 3 of this type

    24
    A circular coil of radius 2 cm and 125 turns carries a current of 1 A . The coil is placed in a uniform magnetic field of magnitude 0.4 T . The axis of the coil makes an angle of 30∘30^{\circ} with the direction of the magnetic field. The torque acting on the coil is α×10−4 N.m\alpha \times 10^{- 4}\text{ }N.m. The value of α\alpha is ____\_\_\_\_ . ( π=3.14\pi = 3.14 )

  4. Question 4

    Oscillations. Asked once: 24 Jan 2026 S1 (same type asked 3 times) See all 3 of this type

    11
    A spring of force constant 15 N/m15\text{ }N/m is cut into two pieces. If the ratio of their length is 1:31:3, then the force constant of smaller piece is ____\_\_\_\_ N/mN/m

    Tap an option to check your answer.

  5. Question 5

    Thermodynamics. Asked once: 23 Jan 2026 S2 (same type asked 3 times) See all 3 of this type

    1
    The internal energy of a monoatomic gas is 3 nRT . One mole of helium is kept in a cylinder having internal cross section area of 17 cm217{\text{ }cm}^{2} and fitted with a light movable frictionless piston. The gas is heated slowly by suppling 126 J heat. If the temperature rises by 4 ∘C4\ ^{\circ}C, then the piston will move ____\_\_\_\_ cm. (atmospheric pressure =105 Pa=10^{5}\text{ }Pa )

    Tap an option to check your answer.