Advertisements
Advertisements
प्रश्न
Sound can travel through solids, gases, liquids, and even vacuum.
पर्याय
True
False
उत्तर
Sound can travel through solids, gases, liquids, and even vacuum - false.
Reason:
Sound can not travel in a vacuum. This is because sound waves are vibrating waves. In a vacuum, where there are no atoms or molecules to vibrate.
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
| 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 |
Name the two characteristics of sound which differentiate two sounds from each other.
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
In fig. shows a snap shot of a wave from of frequency 50 Hz in a string. The numbers in the diagram represents distance in centimeters. Fpr the wave motion, find
(a) Wavelength,
(b) Amplitude,
(c) Velocity.
Explain meaning of the terms compression and rarefaction in relation to a longitudinal wave.
Define the term wave velocity. Write its S.I. unit.
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
If the wavelength of the transverse wave is 32 mm, calculate the speed with which wave travels across the surface of the water.
Can you hear each other in a dark room?
