The speed of wave in a medium is 650 m/s. If 3500 waves are passing through a point in the medium in 1.67 min, then its wavelength will be:

Question

The speed of wave in a medium is 650 m/s. If 3500 waves are passing through a point in the medium in 1.67 min, then its wavelength will be: (A) 16.25 m (B) 14.29 m (C) 18.57 m (D) 20.50 m

Tardigrade Admin · Accepted Answer

As we have given that 3500 waves are passing through a point in the medium in 1.67 min, so frequency of the wave, n=(3500/1.67× 60)≈ 35/s Hence, wavelength of the wave, λ =(v/n) =(650/35)=18.57 m

Q. The speed of wave in a medium is $650 m / s$ . If $3500$ waves are passing through a point in the medium in $1.67 min$ , then its wavelength will be:

16.25 m

14.29 m

18.57 m

20.50 m

As we have given that $3500$ waves are passing through a point in the medium in $1.67 min$ ,
so frequency of the wave,
$n = \frac{3500}{1.67 \times 60} \approx 35/ s$
Hence, wavelength of the wave, $λ = \frac{v}{n}$
$= \frac{650}{35} = 18.57 m$

Q. The speed of wave in a medium is 650m/s. If 3500 waves are passing through a point in the medium in 1.67min, then its wavelength will be: