Question

$\bold\red{What\:is\:hydrogen}$
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Answer 1

Answer:

The time period is the time taken by a complete cycle of the wave to pass a point, Frequency is the number of complete cycle of waves passing a point in unit time.

Answer 2

$\bold\red{What\:is\: Hydrogen}$

$\bold\green{ Hydrogen \: is \: chemical} \:$

$\bold\red{Element}$

$\bold\pink {and \: with \: symbol \: (h)}$