The number of spectral lines emitted by atomic hydrogen that is in the ${4}^{\text{th }}$ energy level, is:

[JEE Main 2025, 29 Jan (Shift 2)]

Question

The number of spectral lines emitted by atomic hydrogen that is in the ${4}^{\text{th }}$ energy level, is: [JEE Main 2025, 29 Jan (Shift 2)]

YESPYQ · Accepted Answer

Correct answer: b) 6. No. of spectral line $=\frac{n(n-1)}{2}=\frac{4\times 3}{2}=6$

The number of spectral lines emitted by atomic hydrogen that is in the \({4}^{\text{th }}\) energy level, is: [JEE Main …