Advertisements
Advertisements
प्रश्न
Define the 'frequency' and 'time-period' of a wave. What is the relation between the two?
Advertisements
उत्तर
The number of complete waves or cycles produced in one second is called frequency of the wave.
The time required to produce one complete wave or vibration is called time period of the wave.
We know the relation between frequency and time period `f = 1/T`,
where f is the frequency and T the time period.
APPEARS IN
संबंधित प्रश्न
Give two practical applications of reflection of sound waves.
Explain the working and application of a sonar.
A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.
Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.
What happens to the loudness of a sound if its amplitude decreases ?
What is meant by the 'loudness' of sound ? On what factor does the loudness of a sound depend ?
Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard.
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?
Name an animal which navigates and finds food by ecolocation.
In SONAR we use:
