MCQ
Relation between radius of Bohr's orbit ' $r$ ', integer ' $n$ ' and constant K :
  • $r=n^2 K$
  • B
    $r=n K$
  • C
    $r=\frac{n}{K^2}$
  • D
    $r=\frac{n}{K}$

Answer

Correct option: A.
$r=n^2 K$
(A) - $r=n^2 K$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Shown below is a distribution of charges. The flux of electric field due to these charges through the surface $S$ is
The permanent magnetic moment of the atoms of a material is zero. The material:
A proton and an electron are accelerated by the same potential difference. Let $\lambda_\text{e}$ and $\lambda_\text{p}$ denote the de Broglie wavelengths of the electron and the proton respectively.
A circuit consists of a coil with inductance $L$ and an uncharged capacitor of capacitance $C$. The coil is in a constant uniform magnetic field such that the flux through the coil is $\phi$. At time $t=0 \,min$, the magnetic field is abruptly switched $OFF$. Let $\omega_{0}=1 / \sqrt{L C}$ and ignore the resistance of the circuit.Then,
If a magnet of pole strength m is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be
The magnetic field at a distance $r$ from a long wire carrying current $i$ is $0.4\, Tesla$. The magnetic field at a distance $2r$ is......$Tesla$
A toroid of n turns, mean radius $R$ and cross$-$sectional radius a carries current I. It is placed on a horizontal table taken as $x-y$ plane. It's magnetic moment m:
What will be the ratio of de-Broglie wavelengths of proton and α - particle of same energy
There are three resistance coils of equal resistance. The maximum number of resistances you can obtain by connecting them in any manner you choose, being free to use any number of the coils in any way is
A charge having $q/m$ equal to $10^8\, C/kg$ and with velocity $3 \times 10^5\, m/s$ enters into a uniform magnetic field $0.3\, tesla$ at an angle $30^o$ with direction of field. The radius of curvature will be ......$cm$