Multiple choice question XIX — task. Science CBSE, Class 9.

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A longitudinal wave is produced on a slinky toy. The wave travels at a speed of

$30\ cm/s$ and the frequency of the wave is

$20\ Hz$ . What is the minimum separation between two consecutive compressions of the slinky toy?

$2.5\ cm$
$1.5\ cm$
$0.5\ cm$
$1.8\ cm$

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