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Which of the following will be the longest wavelength in Balmer series of hydrogen atom?

Correct Answer: 6557 Å
The Balmer series of spectral lines occur when electrons transition from an energy level higher than n = 2 back down to n = 1. Therefore, the longest wavelength in Balmer series is n1 = 2 and n2= 3 is 1/π=\(R\),R=1.1×10 m-1. Thus, 6557 Å will be the longest wavelength.

If the wavelength of the first line of the Balmer series in the hydrogen spectrum is $$\lambda $$, then the wavelength of the first line of the Lyman series is

RH রিডবার্গ ধ্রুবক হলে, হাইড্রোজেন বর্ণালির বামার সিরিজের ২য় লাইনের তরঙ্গদৈর্ঘ্য কত হবে? ( If RH is the Rydberg constant, what will be the wavelength of the 2nd line in the Balmer series of hydrogen spectrum?)

Who discovered the Balmer formula for a series of hydrogen emission lines?

The binding energy of an electron to a proton (i.e., hydrogen atom) is 13.6 eV. The loss of mass in the formation of one atom of hydrogen is _____________

The ultraviolet spectral region is obtained in Balmer series.

In a crystal, there exist a point defect of the interstitial atom. If solute atom is larger than the solvent atom, then which is true for the edge dislocation?

If in a crystal there exist a point defect of the interstitial atom and if solute atom smaller than the solvent atom, then which is true for the edge dislocation?

These two monomers have similar structures, but with a slight difference of sulphur atom replaced by a nitrogen atom bonded to hydrogen. Which pair represents these monomers?

A wavelength converter is termed as _______ if the converted wavelength is longer than the original signal wavelength.

The cut off wavelength and the guided wavelength are given by 0.5 and 2 units respectively. Find the wavelength of the wave.