Question

Which of the following transitions in hydrogen atoms emit photons of highest frequency?

• A. $n=1$ to $n=2$
• B. $n=2$ to $n=6$
• C. $n=6$ to $n=2$
• D. $n=2$ to $n=1$

Answer 1

The correct option is D $n=2$ to $n=1$

Highest frequency emission will be of maximum energy difference.
Energy difference is more in $n=2$ to $n=1$ than $n=6$ to $n=2.$