Question
Physics Question on Atoms
The shortest wavelength in the Balmer series is (R=1.097×107m−1)
A
200nm
B
256.8nm
C
300nm
D
364.6nm
Answer
364.6nm
Explanation
Solution
Wavelength for Balmer series is λ1=R(221−n21) Here, Rydberg's constant R=1.097×107m−1 ∴λ1=1.097×1074 =364.6×10−9m =364.6nm