Advertisements
Advertisements
प्रश्न
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
Advertisements
उत्तर
We have to find the distance to which the sound will reach in a given time.
Given: Velocity of sound ν = 332 m/s
Time t = 3 s
So,
Distance = Speed × Time
Therefore, distance covered is
= 332 × 3 m
= 996 m
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Female voice is shriller than the male voice.
List four substances which are good absorbers of sound.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
What is the nature of sound waves in air?
Distinguish between longitudinal and transverse waves.
Fig. shows three ways in which a string of length l in an instrument can vibrate.
 |
 |
 |
| (i) | (ii) | (iii) |
- Which of the diagram shows the principle note?
- Which vibration has the frequency four times that of the first?
- Which vibration is of the longest wavelength?
- What is the ratio of the frequency of the vibration in (i) and (ii)?
Define the term amplitude of a wave. Write its S.I. unit.
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
Sound cannot travel through ______.
The elastic property of medium is a factor of ______ medium.
