In the hydrogen spectrum,the different lines of the Lyman series are present in the:

Calculate the wave number and frequency of orange radiation having wavelength $6300 \ \mathring{A}$.

Nitrogen laser produces a radiation at a wavelength of $337.1 \ nm$. If the number of photons emitted is $5.6 \times 10^{24}$,calculate the power of this laser.

Which of the following series correctly represents the energy of the radiation?

When electromagnetic radiation of wavelength $300 \, nm$ falls on the surface of a metal,electrons are emitted with the kinetic energy of $1.68 \times 10^5 \, J \, mol^{-1}$. What is the minimum energy needed to remove an electron from the metal? $(h = 6.626 \times 10^{-34} \, J \, s, c = 3 \times 10^8 \, m \, s^{-1}, N_A = 6.022 \times 10^{23} \, mol^{-1})$

Lines of the $Lyman$ series of the spectrum of hydrogen are in