List of top Physics Questions on Alpha-Particle Scattering And Rutherford’S Nuclear Model Of Atom

Mention the most important conclusion of Rutherford's alpha-particle scattering experiment. Define isotopic, isobaric, and isotonic nuclei. Find the energy equivalent to one atomic mass unit in joules and MeV (1 u = 1.6605 × \(10^{-27}\) kg).
Mention the major drawbacks of Rutherford's atomic model.
An \(\alpha\)-particle accelerated by potential difference of V volt strikes with a nucleus (atomic no. = Z). If r be the nearest distance of the particle to reach the nucleus then prove that : \(r = 14.4 \frac{Z}{V} \AA\)
The force, by which the \(\alpha\)-particles are scattered in the \(\alpha\)-particle scattering experiment of Rutherford, is
Given below are two statements :
Statement I : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement II : An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.
In the light of the above statements, choose the most appropriate from the options given below.

 By drawing a ray diagram, explain the formation of image in a compound microscope. Establish the formula for magnifying power for it. 
 

Energy of a particle at absolute temperature \( T \) is of the order of \( kT \). Calculate the wavelength of thermal neutrons at 27°C. Find the energy of a photon having the same wavelength. Here, \( k \) is the Boltzmann constant.

What is Bohr's quantum condition postulate? How is it explained by de Broglie? What are the shortcomings of Bohr's atomic model? 
 

The path of scattered \( \alpha \)-particle is: 
 

Explain postulates of Bohr's model for Hydrogen atom. Show the number of lines in the (A) emission and (B) absorption spectra of Hydrogen atom corresponding to transition between energy states \(n = 1\) and \(n = 4\).
Explain image formation in a reflecting telescope with the help of a ray diagram. Compare its qualities with a refracting telescope.
Calculate the following in the given circuit:
(A) The equivalent capacitance of the circuit.
(B) The charge on \( 3 \, \mu\mathrm{F} \) and \( 2 \, \mu\mathrm{F} \) capacitors.
\includegraphics[]{equivalent capac.PNG}

An electromagnetic wave propagating through vacuum, described by \( E = E_0 \sin(kx - \omega t) \), \( B = B_0 \sin(kx - \omega t) \), then: