Question

A standing wave having 3 nodes and 2 antinodes
is formed between 1.21 Å distance then the
wavelength is :-
(1) 1.21 Å
(2) 2.42 Å
(3) 0.605 Å
(4) 4.84 Å​

Answer 1

Answer:

0.605 Angstrom Because the distance btw 2 nodes is wavelength

Answer 2

Given :-

• The distance between the two atoms = 1.21A°

So,

The wavelength of the standing wave is =

• λ/2 + λ/2
• λ
• 1.21 A° ✔️

===> Option (1) ✔️