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JEE Mains 2026 4 April Morning Shift physics questions with solutions
Browse JEE Mains 2026 4 April Morning Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 25 questions
- MCQmediumThermodynamics
One ideal gas sample contains n₁ moles at pressure P₁, volume V₁ and temperature T₁. A second ideal gas sample contains n₂ moles at pressure P₂, volume V₂ and temperature T₂. They are mixed, and the final mixture has pressure P, volume V and temperature T. Assuming ideal-gas behaviour, which expression gives T?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQmediumGeometrical optics
A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm, as shown in the figure. The nearer end of the rod is 20 cm from the pole of the mirror, so the farther end is 30 cm from the pole. What is the length of the image of the rod?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQeasyCurrent electricity
A voltmeter of internal resistance x Ω has a maximum measuring range of 20 V. To increase its maximum range to 30 V without changing the full-scale current through the meter movement, what modification is required?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQeasyPhotoelectric effect and dual nature of matter
The graph in the figure shows stopping potential V₀ as a function of the frequency ν of incident radiation for three photosensitive metals X₁, X₂ and X₃. Their threshold frequencies increase in the order X₁, X₂, X₃. If all three metals are illuminated with radiation of the same wavelength whose frequency is above all three thresholds, which metal emits photoelectrons with the greatest maximum kinetic energy?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQmediumThermodynamics
An ideal gas undergoes a process described by P = P₀[1+(V₀ / V)²]⁻¹, where P₀ and V₀ are constants. Two samples A and B, each containing two moles of gas, have initial volumes V₀ and 3V₀, respectively. They undergo the stated process and, as described in the source problem, attain the same pressure. Following the state evaluation used in the provided solution, what is T(B)-T(A)?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQmediumCapacitor
A parallel-plate air capacitor remains connected to an ideal battery while the plates are pulled apart at a uniform speed. If x is the instantaneous plate separation and the magnitude of the time rate of change of electrostatic energy is proportional to xᵅ, what is α?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQmediumWave Optics
Unpolarized light is incident on the plane air-dielectric interface shown in the figure at the Brewster angle. Using the x, y and z directions indicated in the figure, which expression corresponds to the reflected electric field according to the given coordinate convention?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQmediumNewtons law of motion and Friction
A block slides from rest from the highest point to the lowest point of a rough inclined plane. The time taken is 50% greater than the time taken by the same block to slide the same distance from rest on an otherwise identical smooth inclined plane. Both planes are inclined at 45° to the horizontal. What is the coefficient of kinetic friction between the block and the rough plane?
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JEE Mains 2026 4 April Morning Shift
Open question & full solution → - IntegereasyWork , Power and Energy
A 1 kg block is acted upon simultaneously by the forces F₁ = (2î+3ĵ+4k̂) N and F₂ = (3î-ĵ-2k̂) N. The block is displaced through 25 m in the direction of the vector (3î-4ĵ). If the work done by the resultant force is N joules, find N.
JEE Mains 2026 4 April Morning Shift
Open question & full solution → - MCQeasyWave Optics
A single slit of width a is illuminated with monochromatic light of wavelength λ. A diffraction pattern is observed on a screen at distance D. What is the linear separation on the screen between the first and the third minima on the same side of the central maximum?
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JEE Mains 2026 4 April Morning Shift
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