A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1.21 Å between them. The wavelength of the standing wave is
1.21 Å
2.42 Å
6.05 Å
3.63 Å
Correct Option: A
Let l be length of string
l =
λ
2 = λ = l
2
Hence, the wave length of standing wave = π = l - 1.2 Å
