A wave is moving in air with a velocity of $340\ m/s$. Calculate the wavelength if its frequency is $512\ vibrations/sec$.

Academic Physics NCERT Class 9

Velocity of the wave $v=340\ m/s$

Frequency $f=512\ vibration/s=512\ Hz$

Therefore, wavelength $\lambda=\frac{velocity\ of\ wave}{frequency}$

$=\frac{340}{512}$

$=0.67\ m$

Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

26 Views

The frequency of the sound emitted by the loudspeaker is $1020\ Hz$. Calculate the wavelength of the sound wave in air in cm where its velocity is $340\ m/s$.
Establish the relationship between speed of sound, its wavelength and frequency. If velocity of sound in air is $340\ ms^{-1}$, calculate$(i)$. wavelength when frequency is $256\ Hz$.$(ii)$. frequency when wavelength is $0.85\ m$.
(a) Define the terms ‘frequency’, ‘wavelength’ and ‘velocity’ of a sound wave. What is the relation between them? (b) A body vibrating with a time-period of $\frac{1}{ 256}\ s$ produces a sound wave which travels in air with a velocity of $350\ m/s$. Calculate the wavelength.
A sound signal of 128 vibrations per second has a wavelength of 2.7 m. Calculate the speed with which the wave travels.
If the speed of a wave is 340 m/s and its frequency is 1700 Hz, then $\lambda$ for this wave in cm will be:(a) 2(b) 0.2(c) 20(d) 200
A wave in slinky travelled to and fro in 5 sec the length of the slinky is 5m. What is the velocity of wave?a. $10\ m/s$b. $5\ m/sc. $2\ m/s$d. $25\ m/s$
Calculate the frequency of a wave whose time-period is $0.02\ s$.
A body of mass $2\ kg$ is moving with the velocity of $5\ m/s$. Find its kinetic energy.
A sound wave travels at a speed of $339\ ms^{-1}$. If its wavelength is $1.5\ cm$, what is the frequency of the wave? Will it be audible?
A body of mass 5 kg is moving with a velocity of 10 m/s. A force is applied to it so that in 25 seconds, it attains a velocity of 35 m/s. Calculate the value of the force applied.
A T.V. Station transmits waves of wave length $200\ m$. Calculate the frequency of waves, if the speed of waves in air is $3.0\times10^{8}\ ms^{-1}$.
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find: (i) Wavelength of the wave (ii) Frequency of the wave
Which of the following statement is correct regarding velocity and speed of a moving body?a. Velocity of a moving body is always higher than its speedb. Speed of a moving body is always higher than its velocityc. Speed of a moving body is its velocity in a given directiond. Velocity of a moving body is its speed in a given direction
Define the terms 'frequency', 'wavelength' and 'velocity' of a sound wave. What is the relation between them?
A car of mass $1000\ kg$ is moving with a velocity of $10\ m/s$. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of $25\ s$ will be:a). 40 m/s b). 25 m/sc). 10 m/s d). 250 m/s

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements