✓ Board-verified
Physics · 2024 · 1 mark
AtomsAlpha-particle Scattering and Rutherford’s Nuclear Model of Atom1 markUnderstandassertion reason
CBSE 2024 · Region 5 · Set 1 · Q16
Assertion (A): An alpha particle is moving towards a gold nucleus. The impact parameter is maximum for the scattering angle of 180^°. Reason (R): The…
Assertion (A) : An alpha particle is moving towards a gold nucleus. The impact parameter is maximum for the scattering angle of $\displaystyle 180^{\circ}$.
Reason (R) : The impact parameter in an alpha particle scattering experiment does not depend upon the atomic number of the target nucleus.
Official answer
(D)
If both Assertion (A) and Reason (R) are false.
More from Atoms
- Define the term - Distance of closest approach. How will it be affected, for an α - particle, if kinetic energy of the particle is doubled?2022
- Define the'distance of closest approach'. An α -particle of kinetic energy K is bombarded on a thin gold foil. Derive an expression for the'distance…2025
- State Bohr's postulate to explain stable orbits in a hydrogen atom. Prove that the speed with which the electron revolves in n^th orbit is…2022
- In Bohr's model of hydrogen atom, find the percentage change in the radius of its orbit when an electron makes a transition from n=3 state to n=2…2025
- Calculate the de Broglie wavelength associated with an electron revolving in the second excited state of hydrogen atom. The ground state energy of…2026
- State Bohr's first and second postulates. Use them to derive an expression for the radius of the n^th orbit in a hydrogen atom.2024
- The radius of the n^th orbit in Bohr model of hydrogen atom is proportional to2023
- Draw a graph showing the variation of number of particles scattered (N) with the scattering angle θ in Geiger-Marsden experiment. Why only a small…2022
CBSE Class 12 Physics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.