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

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
Common Properties of All Waves
  Is there an error in this question or solution?
Chapter 8: Sound - Exercises [Page 158]

APPEARS IN

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

RELATED QUESTIONS

Answer briefly.

Wave motion is doubly periodic. Explain.


Answer briefly.

Define wavelength of a wave.


State any four properties of 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

Sound wave A has period 0.015 s, sound wave B has a period of 0.025 s. Which sound has greater frequency?


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?


In frequency modulated wave ______.


The wave of the wavelength 30 cm and frequency 100 Hz will be ______.


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 ____________.


The frequency of a tuning fork is 220 Hz and the velocity of sound in air is 330 m/s. When the tuning fork completes 80 vibrations, the distance travelled by the ______.


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 displacement-time graphs of two particles A and B are straight lines making angles of 30° and 60° respectively with the time axis. If the velocity of A is vA and that of B is vB, the value of vA/vB is ______.


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 ______.


An astronaut is approaching the moon. He sends out a radio signal of frequency 5000 MHz and the frequency of echo is different from that of the original frequency by 100 kHz. His velocity of approach wrt, to the moon, is ______.


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


The energy of photon corresponding to a radiation of wavelength 600 nm is 3.32 × 10−19 J. The energy of a photon corresponding to a wavelength of 400 nm is ______. 


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×