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JEE Mains 2023 physics questions with solutions
Browse JEE Mains 2023 Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 53 questions
- NumericmediumCapacitor
A parallel-plate capacitor of plate area A and separation d is partially filled by a dielectric slab of dielectric constant K = 4 and thickness x, where x < d. Let C₁ and C₂ be the capacitances for x = d/3 and x = 2d/3 respectively. If C₁ = 2 µF, find C₂ is_____ µF.
JEE Mains 2023
Open question & full solution → - NumericmediumCapacitor
As shown in the figure, two parallel-plate capacitors having equal plate area 200 cm² are connected with a ≠ b. The equivalent capacitance is xε₀ F. Find x.
JEE Mains 2023
Open question & full solution → - NumericmediumCurrent electricity
As shown in the figure, the voltmeter reads 2V across 5 Ω resistor.
JEE Mains 2023
Open question & full solution → - MCQmediumCircular Motion
A body of mass 200g is tied to a spring of spring constant 12.5 N/m, while the other end of spring is fixed at point O. If the body moves about O in a circular path on a smooth horizontal surface with constant angular speed 5 rad/s, then the ratio of extension in the spring to its natural length will be:
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JEE Mains 2023
Open question & full solution → - MCQmediumFluid Mechanics
A fully loaded boeing aircraft has a mass of 5.4 × 10⁵ kg. Its total wing area is 500 m². It is in level flight with a speed of 1080 km/h. If the density of air ρ is 1.2 kg m⁻³ , the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be
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JEE Mains 2023
Open question & full solution → - MCQmediumMagnetic effect of current
A square loop of area 25 cm² and resistance 10 Ω is initially in a uniform magnetic field 40.0 T perpendicular to its plane. It is pulled completely out slowly and uniformly in 1.0 s. The work done is:
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JEE Mains 2023
Open question & full solution → - MCQmediumsemiconductor
A Zener diode of power rating 1.6 W and breakdown voltage 8 V is used as a regulator for an input fluctuating between 3 V and 10 V. Find the series resistance Rₛ for safe operation. Image
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JEE Mains 2023
Open question & full solution → - MCQmediumNewtons law of motion and Friction
A block is on a 45° rough incline. The force required to just push it up the incline is twice the force required to just prevent it from sliding down. Find μ.
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JEE Mains 2023
Open question & full solution → - MCQmediumWave Motion
A steel wire with mass per unit length 7.0 × 10⁻³ kg m⁻¹ is under tension of 70 N. The speed of transverse waves in the wire will be:
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JEE Mains 2023
Open question & full solution → - MCQmediumElectrostatic
For a uniformly charged thin spherical shell, the electric potential (V) radially away from the center (O) of shell can be graphically represented as
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JEE Mains 2023
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