The De-broglie of electron in the 2^ st Bohr orbit is - Vidyadip

MCQ

The De-broglie $\lambda$ of electron in the $2^{st}$ Bohr orbit is

A
$4\pi r_1$
✓
$\pi r_1$
C
$2\pi r_1$
D
$6\pi r_1$

✓

Answer

Correct option: B.

$\pi r_1$

b

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

Explore more

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

At constant volume $5\,mol$ gas show increase in temperature by $3.5\,K$ on providing $437.5\,J$ heat then what will be the heat capacity for gas at constant pressure......$J\,K^{-1}\,mol^{-1}$

Methyl group attached to benzene can be oxidised to carboxyl group by reacting with

Hydrogen cannot reduce

As the $p - $character increases, the bond angle in hybrid orbitals formed by $s$ and atomic orbitals

Which of the following will produce a buffer solution when mixed in equal volumes?

Which one of the following is an incorrect statement

The $pH$ of the solution: $5\;mL$ of $\frac{M}{5}$,$HCl + 10\;mL$ of $\frac{M}{{10}}\;NaOH$ is

$2 \mathrm{SO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \leftrightharpoons 2 \mathrm{SO}_3(\mathrm{~g})+\mathrm{QkJ}$ In the above reaction, how can the yield of product be increased without increasing the pressure?

If the solubility products of $AgCl$ and $AgBr$ are $1.0 \times {10^{ - 8}}\,M$ and $3.5 \times {10^{ - 13}}$ respectively, then the relation between the solubilities (denoted by the symbol$'S'$) of these salts can correctly be represented as

In which of the following species is the interatomic bond angle is ${109^o}28'$