Atomic Energy Levels

Q. According to Bohr's theory of the hydrogen atom, the total energy of the hydrogen atom with its electron revolving in the $n^{th}$ stationary orbit is proportional to

1. $n$
2. $n^2$
3. $\frac{1}{n}$
   
4. $\frac{1}{n^2}$

Q. In a non isolated atom each orbital is splitted into different sub levels.

1. False
2. True

Q. Find the maximum wavelength of electromagnetic radiation which can create an electron - hole pair in silicon whose band gap energy is 1.1 $eV$.

1. 560 $nm$
2. 1130 $nm$
3. 1240 $nm$
4. 870 $nm$

Q.

Suppose the energy liberated in the recombination of a hole-electron pair is converted into electromagnetic radiation. If the maximum wavelength emitted is 820 nm, what is the band gap ?

Q. According to Bohr's theory of the hydrogen atom, the total energy of the hydrogen atom with its electron revolving in the $n^{th}$ stationary orbit is proportional to

1. $n$
2. $n^2$
3. $\frac{1}{n}$
   
4. $\frac{1}{n^2}$

Q. In a non isolated atom each orbital is splitted into different sub levels.

1. False
2. True

Q. Find the maximum wavelength of electromagnetic radiation which can create an electron - hole pair in silicon whose band gap energy is 1.1 $eV$.

1. 560 $nm$
2. 1130 $nm$
3. 1240 $nm$
4. 870 $nm$

Q. According to Bohr's theory of the hydrogen atom, the total energy of the hydrogen atom with its electron revolving in the $n^{th}$ stationary orbit is proportional to

1. $n$
2. $n^2$
3. $\frac{1}{n}$
   
4. $\frac{1}{n^2}$

Q. In a non isolated atom each orbital is splitted into different sub levels.

1. False
2. True

Q. Find the maximum wavelength of electromagnetic radiation which can create an electron - hole pair in silicon whose band gap energy is 1.1 $eV$.

1. 560 $nm$
2. 1130 $nm$
3. 1240 $nm$
4. 870 $nm$