Question

In Bohr's theory of hydrogen atom, the electron jumps from higher orbit n to lower orbit p. The wavelength will be minimum for the transition ______.

विकल्प

• n = 5 to p = 4

• n = 4 to p = 3

• n = 3 to p = 2

• n = 2 to p = 1

Answer 1

In Bohr's theory of hydrogen atom, the electron jumps from higher orbit n to lower orbit p. The wavelength will be minimum for the transition n = 5 to p = 4.

Explanation:

According to Bohr's theory, the wavelength of radiation emitted is given by

`1/lambda="R"[1/"n"_1^2-1/"n"_2^2]`

The transition of an electron from n = 5 to p = 4 will occur at the minimum wave length because the energy difference ΔE = E₅ - E₄ is very small.