Question

Two tuning forks have frequencies $450Hz$ and $454Hz$ respectively. On sounding these together, the time interval between successive maximum intensities will be

• A. $1/4$ $second$
• B. $1/2$ $second$
• C. $1$ $second$
• D. $2$ $second$

Answer 1

The correct option is A $1/4$ $second$

The question is indirectly asking the beat period,

T=$\frac{1}{f_2-f_1}=\frac{1}{4}second$