Free physics question bank
Atomic Structure and X-rays questions with solutions
Practice Atomic Structure and X-rays for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 295 questions
- MCQmediumAtomic Structure and X-rays
In a Rutherford α-particle scattering experiment, identical α-particles having the same kinetic energy are incident separately on two thin metallic foils. The first foil has atomic number Z₁ = 30 and the second has atomic number Z₂ = 60. The foil thickness, target-atom number density, detector solid angle and scattering angle are identical. If the count rates are N₁ and N₂ respectively, what is N₂ ÷ N₁?
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JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumAtomic Structure and X-rays
Using the same shifted energy scale in which the fifth Bohr orbit of hydrogen is defined to have zero energy, what energy is assigned to a completely free electron at infinite separation?
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JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumAtomic Structure and X-rays
Let λ₁ be the Kα wavelength of copper (Z = 29) and λ₂ the Kα wavelength of molybdenum (Z = 42). Find λ₁/λ₂.
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JEE Advanced 2014
Open question & full solution → - MCQeasyAtomic Structure and X-rays
The ratio of the magnitude of the kinetic energy to the potential energy of an electron in the 5th excited state of a hydrogen atom is :
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JEE Mains 2024 30 Jan Morning Shift
Open question & full solution → - NumericmediumAtomic Structure and X-rays
An electron is accelerated through 40 kV before striking the target of an X-ray tube. In one interaction it loses 75% of its kinetic energy in producing a single X-ray photon. Take hc = 1240 eV·nm. If the wavelength of this photon is approximately N pm, find N to the nearest integer.
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumAtomic Structure and X-rays
A stationary hydrogen atom of mass M emits a photon corresponding to the longest wavelength of the Balmer series. Find the recoil speed of the atom. R is the Rydberg constant and h is Planck's constant.
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JEE MainsAdvanced
Open question & full solution → - MCQeasyAtomic Structure and X-rays
A hydrogen atom is initially in its ground state. What minimum energy must be supplied to remove the electron completely from the atom, leaving it free with zero kinetic energy at infinite separation?
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JEE MainsNEETJEE Advanced
Open question & full solution → - NumericmediumAtomic Structure and X-rays
An X-ray tube operates at 50 kV with a tube current of 4.0 mA. Only 1.0% of the electrical power delivered to the electron beam appears as X-ray radiation; the rest is converted mainly into heat in the target. If the X-ray power is N watts, find N.
JEE MainsNEETJEE Advanced
Open question & full solution → - MCQmediumAtomic Structure and X-rays
In the same hypothetical magnetic-field Bohr model, magnetic force provides the centripetal force and mvr = nħ is imposed. How does the particle's kinetic energy depend on the orbit number n?
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JEE MainsNEETJEE Advanced
Open question & full solution → - Multi-correctmediumAtomic Structure and X-rays
A beam of ultraviolet light of all wavelengths passes through hydrogen gas at room temperature, in the x-direction. Assume that all photons emitted due to electron transition inside the gas emerge in the y-direction. Let A and B denote the lights emerging from the gas in the x and y directions respectively.
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JEE MainsAdvanced
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