Question

According to Bohr correspondence principle when quantum number is very large –

• A. Frequency of revolution of electron in an orbit is equal to the frequency of photon emitted when electron jumps from that orbit to next lower orbit
• B. Classical physics approaches quantum physics
• C. Wavelength of electron De Broglie wavelength does not depend on kinetic energy of electron
• D. Energy of electrons are not quantized

Answer 1

Answer: (A)

Frequency of revolution of electron in an orbit is equal to the frequency of photon emitted when electron jumps from that orbit to next lower orbit

Answer 2

Frequency of revolution of electron is f µ $\frac{1}{n^{3}}$

frequency of photon emitted

n µ $\left( \frac{1}{(n - 1)^{2}} - \frac{1}{n^{2}} \right)$

n µ$\left\lbrack \frac{n^{2} - (n - 1)^{2}}{n(n - 1)\rbrack^{2}} \right\rbrack$

n µ $\frac{\lbrack(2n - 1)\rbrack}{n^{2}(n - 1)^{2}}$

when n >> 1

n µ $\frac{2n}{n^{4}}$

n µ $\frac{1}{n^{3}}$