For the Brackett series ( ) in hydrogen

CHEMISTRY · Single correct · CBSE · Chemistry · Structure of Atom · Structure of Atom

Problem

For the Brackett series (

n_1 = 4

) in hydrogen, an electron falls from

n_2 = 7

. Determine the longest wavelength (in

\mu\text{m}

) that can be emitted under this condition. (a)

2.62\,\mu\text{m}

(b)

4.44\,\mu\text{m}

(c)

4.05\,\mu\text{m}

(d)

2.16\,\mu\text{m}