English

Solve the following problem. A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate speed of sound. - Physics

Advertisements
Advertisements

Question

Solve the following problem.

A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate the speed of sound.

Sum
Advertisements

Solution

Given: n = 170 Hz, λ = 2 m

To find: velocity of sound (v)

Formula: v = nλ

Calculation: From formula,

v = 170 × 2

∴ v = 340 m/s

The velocity of sound 340 m/s.

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: Sound - Exercises [Page 158]

APPEARS IN

Balbharati Physics [English] Standard 11 Maharashtra State Board
Chapter 8 Sound
Exercises | Q 3. (ii) | Page 158

RELATED QUESTIONS

Answer briefly.

Wave motion is doubly periodic. Explain.


Define progressive wave.


Solve the following problem.

A certain sound wave in air has a speed 340 m/s and wavelength 1.7 m for this wave, calculate 

  1. the frequency
  2. the period

Two sinusoidal plane waves of the same frequency having intensities I0 and 4I0 are travelling in the same direction. The resultant intensity at a point at which waves meet with a phase difference of zero radians is ______


Two waves of the same amplitude superimpose to produce two beats per second. What is the ratio of minimum loudness to that of one of the waves?


The ratio of minimum to maximum wavelength in Balmer series is ____________.


In frequency modulated wave ______.


When the kinetic energy of an electron is increased, the wavelength of the associated wave will ______.


The following figure shows the shape of part of a long string in which transverse waves are produced by attaching one end of the slring to tuning fork of frequency 300 Hz. The velocity of the waves is ____________.


If velocity of sound in a gas is 360 m/s and the distance between a compression and the nearest rarefaction is 2 m, then the frequency of sound is ____________.


A progressive wave of frequency 50 Hz is travelling with velocity 350 m/s through a medium. The change in phase at a given time interval of 0.01 s is ______.


When the observer moves towards a stationary source with velocity V1, the apparent frequency of emitted note is F1. When observer moves away from the source with velocity V1, the apparent frequency is F2. If V is the velocity of sound in air and `"F"_1/"F"_2=2` then `"V"/"V"_1` is equal to ______.


The equation of wave motion is `y = 6 sin[12pit-0.02pix+pi/2],` where x is in m and t in second. The velocity of the wave is ______.


The wavelength of two waves are 50 and 51 cm respectively. If the temperature of the room is 20°C then what will be the number of beats produced per second by these waves, when the speed of sound at 0°C is 332 m/s?


The width of a slit is 0.012 mm. Monochromatic light is incident on it. The angular position of first bright line is 5.2°. The wavelength of incident light is ______. [sin 5.2° = 0.0906].


In communication system, the process of superimposing a low frequency signal on a high frequency wave is known as ______.


A source of 300 Hz frequency, an observer and a wind are moving as shown in the figure with respect to the ground. The frequency heard by observation is ______.

 

(Take, the speed of sound in air = 340 m/s)


Two instruments having stretched strings are being played in unison. When the tension of one of the instruments is increased by 1%, 3 beats are produced in 2 s. The initial frequency of vibration of each wire is ______.


A progressive wave of frequency 500 Hz is travelling with a velocity of 360 m/s. How far apart are two points 60° out of phase?


Wave of frequency 500 Hz has a phase velocity 360 ms-1. The phase difference between two displacement at a certain point at time 10-3 s apart will be ______.


If a string fixed at both ends vibrates in four loops. The wavelength is 10 cm. The length of string is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×