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प्रश्न
A list of mediums is given below.
- wood
- water
- air
- vacuum
In which of these mediums can sound travel?
विकल्प
i & ii only
i, ii & iii only
iii & iv only
ii, iii & iv only
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उत्तर
i, ii & iii only
Explanation:
Sound requires any medium to travel but in vacuum there is no medium, so sound cannot travel through them.
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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 |
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)?
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
What do you mean by the audible range of frequency?
How is sound perceived by us?
Select the correct option:
Which of the following is an elastic wave?
State three conditions necessary for hearing sound.
Draw a displacement-time graph for water wave.
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
With reference to the frequency, describe the movement of water on the surface
What is the ratio of speed of light to speed of sound?
