JEE Mains 2025 23 Jan Morning Shift physics questions with solutions

Showing 1–10 of 19 questions

• MCQeasyGravitationlaw of gravitation ,gravitational field intensity ,gravitational potential and potential energy

  The ratio of electric force to gravitational force between particles of charges q₁,q₂ and masses m₁,m₂ is:

  Options

  • Option A

    4πε₀m₁m₂G/(q₁q₂)

  • Option B

    4πε₀Gm₁m₂/(q₁q₂r⁴)

  • Option C

    q₁q₂r⁴/(4πε₀Gm₁m₂)

  • Option D

    q₁q₂/(4πε₀Gm₁m₂)

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• MCQmediumsemiconductorapplication of diode and zener breakdown

  A 12 V source feeds a network with a 4 Ω resistor from the top node to A. From A to the bottom node there are two 4 Ω branches, one directly and one through an ideal forward-biased diode to B and then 4 Ω to the bottom. Statements: (A) ammeter current is 2 A; (B) net resistance is 8 Ω; (C) voltage across BC is 4 V; (D) diode current is 1 A. Choose the correct option.

  

  Options

  • Option A

    Only ABC are correct

  • Option B

    Only ACD are correct

  • Option C

    Only ABD are correct

  • Option D

    Only AD are correct

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• MCQmediumWork , Power and Energyquestion based on work

  A particle moves along x=y from (0,0) to (2,2) in the force field $\overrightarrow{F}$=x³y î+y² ĵ. The work done is:

  Options

  • Option A

    173/15

  • Option B

    136/15

  • Option C

    139/17

  • Option D

    171/17

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• MCQeasyProperties of solid and fluidproperties of fluid and surface tension

  Statement-I: Hot water is less viscous than cold water. Statement-II: Surface tension of a soap bubble is more than that of a drop of water.

  Options

  • Option A

    Both statements are true

  • Option B

    Statement-I is true and Statement-II is false

  • Option C

    Statement-I is false and Statement-II is true

  • Option D

    Both statements are false

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• MCQmediumSimple Harmonic Motiontime period of linear shm

  A cube of side 10 cm and mass 10 g oscillates vertically in water of density 10³ kg/m³. Take g=10 m/s². Find its time period.

  Options

  • Option A

    π/25 s

  • Option B

    π/50 s

  • Option C

    π/100 s

  • Option D

    2π/25 s

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• MCQeasyUnit dimension and errorDimension and its application

  Electric flux φ is related to linear charge density λ and surface charge density σ as φ=αλ+βσ, where α and β have appropriate dimensions. The dimension of β/α is:

  Options

  • Option A

    Displacement

  • Option B

    Area

  • Option C

    Electric field

  • Option D

    Velocity

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  JEE Mains 2025 23 Jan Morning Shift

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• MCQeasyKinematics Part-1 (one dimension)Ghraphical problem of kinematics

  

  The velocity-time graph of a particle is a straight line from v=200 m/s at t=0 to v=400 m/s at t=2 s. Find the distance travelled in the first 0.5 s.

  Options

  • Option A

    125 m

  • Option B

    112.5 m

  • Option C

    137.5 m

  • Option D

    150 m

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• MCQeasyElectromagnetic InductionMutual induction and L-C oscillations,transformer

  A 12 V DC source, a 3 H ideal inductor and a resistor R=12 Ω are connected in series. Find the steady-state current.

  

  Options

  • Option A

    2 A

  • Option B

    1 A

  • Option C

    3 A

  • Option D

    4 A

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• MCQmediumUnit dimension and errorDimension and its application

  The displacement of a particle is x(t)=A sin(t)+B cos²(t)+Ct²+D. Find the dimensions of ABC/D.

  Options

  • Option A

    L²

  • Option B

    L²T⁻²

  • Option C

    LT⁻²

  • Option D

    L³T

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• MCQmediumGeometrical opticsrefraction due to curved surface

  Two objects are at equal distances from opposite surfaces of a transparent sphere of radius R and re$fractive$ index μ, such that the image of one object is formed on the other. The object distance from the surface is:

  Options

  • Option A

    R/μ

  • Option B

    R/(μ-1)

  • Option C

    R

  • Option D

    R/(μ+1)

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