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JEE Advanced Practice physics questions with solutions
Browse JEE Advanced Practice Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 47 questions
- Multi-correctmediumAtomic Structure and X-rays
An X-ray tube is operating at 50 kV and 20 mA. The target material of the tube has a mass of 1.0 kg and specific heat 495 J kg⁻¹ °C⁻¹. One percent of the supplied electric power is converted into X-rays and entire remaining energy goes into heating the target. Then:
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JEE Advanced Practice
Open question & full solution → - Multi-correctmediumFluid Mechanics
A 5 cm mercury pellet traps a 20 cm air column in a horizontal narrow tube while the tube accelerates at a = g/2 as shown. Atmospheric pressure is 72.5 cm Hg. If acceleration is reversed with the same magnitude, find the new trapped-air length. Image
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JEE Advanced Practice
Open question & full solution → - NumericmediumProperties of solid and fluid
A spherical ball of radius 1 × 10⁻⁴ m and density 10⁴ kg m⁻³ falls freely under gravity through a distance h before entering water. If its velocity does not change after entering the water, find h in metres. The viscosity of water is 9.8 × 10⁻⁶ N s m⁻².
JEE Advanced Practice
Open question & full solution → - NumericmediumAtomic Structure and X-rays
The shortest wavelength of the Brackett series of a hydrogen-like atom of atomic number Z equals the shortest wavelength of the Balmer series of hydrogen. Find Z.
JEE Advanced Practice
Open question & full solution → - MCQmediumNuclear physics
When two deuterons ²₁H fuse to form one helium nucleus ⁴₂He, 23.6 MeV is released. If the binding energy per nucleon of deuterium is 1.1 MeV, find the total binding energy of ⁴₂He.
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JEE Advanced Practice
Open question & full solution → - MCQmediumFluid Mechanics
A rectangular soap bar of density 800 kg m⁻³ floats in water of density 1000 kg m⁻³. Oil of density 300 kg m⁻³ is added until its free surface reaches the top of the soap. If oil thickness is x and soap thickness is L, find x/L. Image
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JEE Advanced Practice
Open question & full solution → - MCQmediumNuclear physics
A body of initial mass m₀ is on a smooth horizontal surface. Its mass decreases exponentially with decay constant λ by ejecting mass backward at constant relative speed u. It starts from rest. Find its speed after time t.
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JEE Advanced Practice
Open question & full solution → - NumericmediumNuclear physics
A radioactive sample has mean life 20 ms. A 100 μF capacitor discharges through resistance R. Find R so that the ratio of capacitor charge Q(t) to radioactive activity A(t) remains constant in time. Give R in Ω.
JEE Advanced Practice
Open question & full solution → - MCQmediumProperties of solid and fluid
Which graph is incorrect for a sphere falling from rest in a viscous liquid? Image
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JEE Advanced Practice
Open question & full solution → - MCQmediumNuclear physics
A nucleus of mass M+Δm at rest decays into two daughter nuclei of masses M/4 and 3M/4. Find the speed of the daughter of mass M/4, assuming non-relativistic motion.
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JEE Advanced Practice
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