You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Mechanism of Formation of P-N Junction

Choose the co...

Question

Choose the correct relation for single electron system.

r_{n} \propto \frac{n^{2}}{Z}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

E_{n} \propto - \frac{Z^{2}}{n^{2}}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

V_{n} \propto \frac{Z}{n}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $r_{n} \propto \frac{n^{2}}{Z}$
$r_{n} \propto \frac{n^{2}}{z}$

$E_{n} \propto \frac{z^{2}}{n^{2}}$

$V_{n} \propto \frac{z}{n}$
All are correct.
Ans-D

Suggest Corrections

Similar questions

For

H

-like atoms :

E_{n} = - \frac{Z^{2} R h}{n^{2}}; u_{n} = \frac{u_{1} Z}{n}

and

r_{n} = \frac{r_{1} \times n^{2}}{Z};

where

R h

is Rydberg.

What is the potential energy of electron in

2^{n d}

orbit of

H

-atom?

For

H

-like atoms:

E_{n} = - \frac{Z^{2} R h}{n^{2}}; u_{n} = \frac{u_{1} Z}{n}

and

r_{n} = \frac{r_{1} \times n^{2}}{Z};

where

R h

is Rydberg.

The electrons in

L i^{2 +}

ions are excited from ground state by absorbing

8.4375 R h

energy/electron. How much emission lines are expected during de-excitation of electrons to ground state?

Q. n

\to

Orbit no.,\, Z

\to

Atomic no

⟹ r n, x \to

Radius

v_{n, z} \to

velocity

T_{n, z} \to

time period of Revolution

⟹ K_{n, z} \to

Kinetic energy of the electron

Q. Suppose an electron is attracted towards the originby a force

\frac{k}{r}

where 'k' is a constant and 'r' is the distance of the electron from the origin. By applying Bohr model to this system, the radius of the

n^{t h}

orbital of the electrons is found to be '

r_{n}

' and the kinetic energy of the electron to be '

T_{n}

'. Then which of the following is true?

Q. Rahul was told by his teacher to Calculate mass of the following :
I. 0.5 mole of

N_{2}

gas
II. 0.5 mole of N atoms
III.

3.011 \times 10^{23}

number of N atoms
IV.

6.023 \times 10^{23}

number of

N_{2}

moecules
He calculated the mass as I = x g, II = y g, III = z g, IV = w g
Which relation is correct among these ?

Join BYJU'S Learning Program

Choose the correct relation for single electron system.

The correct option is A rn∝n2Zrn∝n2z En∝z2n2 Vn∝zn All are correct. Ans-D

The correct option is A $r_{n} \propto \frac{n^{2}}{Z}$
$r_{n} \propto \frac{n^{2}}{z}$

$E_{n} \propto \frac{z^{2}}{n^{2}}$

$V_{n} \propto \frac{z}{n}$
All are correct.
Ans-D