Two tuning forks of frequencies `256 Hz` and `258 Hz` are sounded together. The time interval, between two consecutive maxima heard by an observer is

Options

A. 2 s
B. 0.5 s
C. 250 s
D. 252 s

Answer

B

Explanation

Given, `n_(1)=256" vib"//"s","n"_(2)=258" vib"//"s"`, Number of beats produced per second `N=n_(1)~n_(2)=256~258=2`
So, times interval between two consecutive maxima `=(1)/(2)=0.5" s"`.