question_answer

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 [CBSE PMT 1998; MH CET 2002; AIIMS 2000; BHU 2001]

A)            1.21 Å                                      

B)            2.42 Å

C)            6.05 Å                                      

D)            3.63 Å

Correct Answer: A

Solution :

                     \[\lambda =1.21{\AA}\]