How long does it take for a sound wave of frequency $2 k H z$ and a wavelength of $35 c m$ to travel a distance of $1.5 k m$ ?

3 s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2.3 s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.9 s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2.1 s e c

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $2.1 s e c$
We know that the speed of sound is given by the formula:
Speed of Sound, $v = λ f$
$v = 0.35 m \times 2000 H z = 700 m / s$
Time $=$ Distance Travelled/ Velocity
Substituting the values in the equation, we get
Time $= 1500 m / 700 m / s = 2.1 s$

Suggest Corrections

Similar questions

1 k H z

25 c m

2.2 k m

How much time will it take by a sound wave having a frequency of $4 K H z$ and wavelength $40 c m$ to travel $4 k m$ ?

1, 000 Hz

34 cm

1 km

Join BYJU'S Learning Program