Parul plays a note of a frequency 4 kHz on her synthesiser. She knows the speed of sound is 340 m/s in air. What is the wavelength of the required note?

0.85 m

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

0.0085 m

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

0.085 cm

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

0.085 m

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

Open in App

Solution

The correct option is D
0.085 m

Given: f = 4 kHz = 4000 Hz, v = 340 m/s, λ = ?

Using, v = f $\times$ λ

we get, λ = $\frac{v}{f}$

= $\frac{340}{4000}$

= 0.085 m (Answer)

Suggest Corrections

Similar questions

Q. Establish the relationship between speed of sound, its wavelength and frequency. Velocity of sound in air is

340 m / s^{- 1}

. Calculate frequency when wavelength is

0.85 m

Q. The frequency of a rod is

200 H z

. If the velocity of sound in air is

340 m s^{- 1}

, the wavelength of the sound produced is

A violin player riding on a slow train plays a 440 Hz note. Another violin player standing near the track plays the same note. When the two are close by and the train approaches the person on the ground, he hears 4.0 beats per second. The speed of sound in air = 340 m/s. (a) Calculate the speed of the train. (b) What beat frequency is heard by the player in the train ?

Q. Ultrasonic sound of frequency

100 k H z

emitted by a bat is incident on a water surface. Calculate the wavelength of reflected sound and transmitted sound? (speed of sound in air

340 m s^{- 1}

)

Q. Wavelength of two notes is air

\frac{80}{195}

m and

\frac{80}{193}

m. Each note produces 5 beats per second with a third note of a fixed frequency. The speed of sound in air is:

Join BYJU'S Learning Program

Parul plays a note of a frequency 4 kHz on her synthesiser. She knows the speed of sound is 340 m/s in air. What is the wavelength of the required note?

The correct option is D 0.085 m Given: f = 4 kHz = 4000 Hz, v = 340 m/s, λ = ? Using, v = f × λ we get, λ = vf = 3404000 = 0.085 m (Answer)

The correct option is D
0.085 m

Given: f = 4 kHz = 4000 Hz, v = 340 m/s, λ = ?

Using, v = f $\times$ λ

we get, λ = $\frac{v}{f}$

= $\frac{340}{4000}$

= 0.085 m (Answer)