Question

A standing wave having $2$ nodes and $1$ antinode are formed between two atoms having a separation of $0.605A^o$ between them. The wavelength of the standing wave is

• A. $1.21A^o$
• B. $2.42A^o$
• C. $6.05A^o$
• D. $3.63A^o$

Answer 1

The correct option is A $1.21A^o$

wavelength $=2\times l$
$=2\times 0.605\stackrel{o}{A}$
$=1.21\stackrel{o}{A}.$