JEE Mains 2024 29 Jan Evening Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQeasyGravitationSatellites, Orbital Motion & Kepler’s Laws

  A planet takes 200 days to complete one revolution around the Sun. If the distance of the planet from Sun is reduced to one fourth of the original distance, how many days will it take to complete one revolution ?

  Options

  • Option A

    25

  • Option B

    50

  • Option C

    100

  • Option D

    20

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericmediumCapacitorRC circuit

  In the given figure, the charge stored in 6μF capacitor, when points A and B are joined by a connecting wire is _______μC.

  

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericmediumProperties of solid and fluidpropertes of solid stress ,strain and modulus of elasticity

  Two metallic wires P and Q have same volume and are made up of same material. If their area of cross sections are in the ratio 4 : 1 and force F₁ is applied to P, an extension of Δl is produced. The force which is required to produce same extension in Q is F₂. The value of F₁/F₂ is_______ .

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• MCQeasyKinematics Part-1 (one dimension)Acceleration and Avg acceleration

  A particle is moving in a straight line. The variation of position ‘x’ as a function of time ‘t’ is given as x = (t³ – 6t² + 20t + 15) m. The velocity of the body when its acceleration becomes zero is :

  Options

  • Option A

    4 m/s

  • Option B

    8 m/s

  • Option C

    10 m/s

  • Option D

    6 m/s

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• MCQeasyAtomic Structure and X-raysatomic structre and bohr atomic model

  Given below are two statements : Statement I : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model. Statement II : An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model. In the light of the above statements, choose the most appropriate from the options given below.

  Options

  • Option A

    Both statement I and statement II are false

  • Option B

    Statement I is false but statement II is true

  • Option C

    Statement I is true but statement II is false

  • Option D

    Both statement I and statement II are true

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• MCQeasyAC Circuitsavg value and rms value of ac

  In an a.c. circuit, voltage and current are given by : V = 100 sin (100 t) V and I = 100 sin (100 t + π/3) mA respectively. The average power dissipated in one cycle is :

  Options

  • Option A

    5 W

  • Option B

    10 W

  • Option C

    2.5 W

  • Option D

    25 W

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericmediumWave Opticsdiffraction of light

  In a single slit diffraction pattern, a light of wavelength 6000 Å is used. The distance between the first and third minima in the diffraction pattern is found to be 3 mm when the screen in placed 50 cm away from slits. The width of the slit is ______ × 10⁻⁴ m.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericeasyMagnetic effect of currentmotion of charge particle in magnetic field

  A charge of 4.0 μC is moving with a velocity of 4.0 × 10⁶ ms⁻¹ along the positive y-axis under a magnetic field $\vec{B}$ of strength (2k̂) T. The force acting on the charge is xî N. The value of x is __.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericmediumCurrent electricityCircuit Theory & Kirchhoff’s Laws

  In the given circuit, the current flowing through the resistance 20Ω is 0.3 A, while the ammeter reads 0.9 A. The value of R₁ is ______ Ω.

  

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →
• NumericmediumRotational Motionangular momentum in pure rotation and its conservation

  A body of mass 5 kg moving with a uniform speed 3√2 ms⁻¹ in X – Y plane along the line y = x + 4. The angular momentum of the particle about the origin will be ______ kg m²s⁻¹.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Evening Shift

  Open question & full solution →