Waves - Result Question 15
«««< HEAD:content/english/neet-pyq-chapterwise/physics/waves/waves-result-question-15.md
15. A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance $1.21 \AA$ between them. The wavelength of the standing wave is
======= ####15. A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance $1.21 \AA$ between them. The wavelength of the standing wave is
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/waves/waves—result-question-15.md (a) $1.21 \AA$
(b) $2.42 \AA$
(c) $6.05 \AA$
(d) $3.63 \AA$
[1998]
Show Answer
Answer:
Correct Answer: 15. (a)
Solution:
- (a) Let $\ell$ be length of string
$ \ell=(\frac{\lambda}{2}) 2 \Rightarrow \lambda=\ell $
Hence, the wave length of standing wave
$\Rightarrow \lambda=\ell=1.21 \AA$
