Advertisements
Advertisements
प्रश्न
Define one hertz.
Advertisements
उत्तर
One hertz is defined as one vibration produced in one second by the sound-producing object.
APPEARS IN
संबंधित प्रश्न
What is sound ?
How does a bat make use of ultrasonics waves to find its way?
State the general name of the waves in which the particles of the medium vibrate :
(i) in the same direction as wave.
(ii) at right angles to the direction of wave.
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
State three conditions necessary for hearing sound.
Vibrations in a body produce ______.
The speed of sound in air at 0°C is ______.
Find the odd one out.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
