Advertisements
Advertisements
Question
The time interval between a lighting flash and the first sound of thunder was found to be 6 s. If the speed of sound in air is 330 ms-1, find the distance of the flash from the observer.
Advertisements
Solution
The distance of the flash from the observer = speed in air x time taken for the first sound to reach
330 x 6 = 1980m
APPEARS IN
RELATED QUESTIONS
Write true or false for a given statement.
Larger is the amplitude, feeble is the sound.
What do you mean by a vibratory motion?
How is sound produced ?
Select the correct option:
The longitudinal waves can propagate only in
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey.
What do you mean by the frequency of sound?
Rapid back and forth motion of a particle about its mean position is called _____.
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
