Advertisements
Advertisements
प्रश्न
200 waves pass through a point in one second. Calculate the time period of wave.
Advertisements
उत्तर
Waves passing through a point in 1 second = 200
We know, frequency (ƒ) = Number of waves passing through a point in 1 second.
∴ ƒ = 200Hz
Also, T = `1/"f"`
∴ Time period (T) = `1/200`
T = 0.005s
APPEARS IN
संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
Distinguish between loudness and intensity of sound.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
Are sound waves longitudinal or transverse?
What is the audible range of frequency for human?
he sound of an explosion on the surface of a lake is heard by a boatman 120 m away and by a diver 120 m below the point of explosion. Out of the two persons, who would hear the sound first? Why?
Sound travels in the form of ______.
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
Why is a sound wave called a longitudinal wave?
Name the waves used for sound ranging. State one reason for their use.
