JEE Mains 2025 22 Jan Evening Shift physics questions with solutions

Showing 1–10 of 20 questions

• MCQmediumWork , Power and Energyquestion based on work

  A force $\vec{F}$=(2î+bĵ+k̂) N acts through a displacement $\vec{d}$=(î+ĵ+k̂) m. Find b if the work done by the force is zero.

  Options

  • Option A

    0

  • Option B

    +3

  • Option C

    -3

  • Option D

    -1

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• MCQmediumWave Opticsinterferece of light and huygen principle

  A glass slab of re$fractive$ index $\mu_{g}$=1.44 is coated with a thin film of re$fractive$ index $\mu_{f}$=2. Find the minimum film thickness for maximum transmission of normally incident green light of wavelength 5000 Å.

  Options

  • Option A

    0.500 μm

  • Option B

    0.250 μm

  • Option C

    0.125 μm

  • Option D

    1.00 μm

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• IntegereasyCurrent electricityequivalent resistance

  In the symmetric resistor network shown in the original question figure, every resistor has resistance R. If the equivalent resistance across A and B is NR/2, find N.

  

  Your answer

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• MCQeasyMagnetic effect of currentbiot savart law and magnetic field due to straight conductor ,arc and ring

  Two infinite straight current-carrying wires are 6 cm apart. The left wire carries 5 A upward and the right wire carries 4 A downward. Point O is 4 cm to the right of the 4 A wire. The magnitude of the net magnetic field at O is:

  

  Options

  • Option A

    1×10⁻⁵ T

  • Option B

    1.2×10⁻⁵ T

  • Option C

    1.5×10⁻⁵ T

  • Option D

    2×10⁻⁵ T

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• MCQeasyCapacitorRC circuit

  In the resistor-capacitor network shown in the original question figure, find the steady-state current I supplied by source V. Every resistor has resistance R.

  

  Options

  • Option A

    V/(5R)

  • Option B

    5V/(3R)

  • Option C

    8V/(13R)

  • Option D

    3V/R

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• MCQmediumSimple Harmonic Motionangular shm and its time period

  Statement I: A pendulum is taken from Earth to a planet having four times Earth's mass and twice Earth's radius; its time period remains the same. Statement II: The time period of a simple pendulum depends only on the gravity of the planet.

  Options

  • Option A

    Statement I is true but Statement II is false

  • Option B

    Statement II is true but Statement I is false

  • Option C

    Both statements are false

  • Option D

    Both statements are true

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• MCQmediumWave Opticsyoung's dubble slit experiments

  Statement I: Fringe width of red light is greater than the fringe width of violet light. Statement II: Fringe width is directly proportional to the wavelength of light used. Choose the correct option.

  Options

  • Option A

    Statement I is correct and Statement II is incorrect

  • Option B

    Both Statement I and Statement II are correct

  • Option C

    Statement I is incorrect and Statement II is correct

  • Option D

    Both Statement I and Statement II are incorrect

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• MCQmediumsemiconductorlogic gate

  For the logic circuit and truth table shown in the original question figure, identify the gate G.

  

  Options

  • Option A

    AND

  • Option B

    NOR

  • Option C

    NAND

  • Option D

    OR

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• MCQmediumFluid Mechanicsequation of continuity and bornullie theorem

  The radius of a tube decreases from 2R to R. An ideal liquid flows through it at the same level. If the speed at the wider end is 2 m/s, the speed v at the narrower end is:

  

  Options

  • Option A

    4 m/s

  • Option B

    1 m/s

  • Option C

    2 m/s

  • Option D

    8 m/s

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• MCQmediumMagnetic effect of currentmotion of charge particle in magnetic field

  A proton moves with uniform speed 2×10⁸ m/s in mutually perpendicular uniform electric and magnetic fields. If the electric field is switched off, the proton moves in a circular path of radius 1.6×10⁻⁵ m. The magnetic field B is:

  Options

  • Option A

    5×10⁻⁵ T

  • Option B

    1.2×10⁵ T

  • Option C

    2.5×10⁴ T

  • Option D

    2.5×10² T

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