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प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
लघु उत्तर
उत्तर
- IV
- I
- II
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संबंधित प्रश्न
Complete the following sentence:
Ultrasound is of frequency ___________.
The properties of ultrasound that make it useful are
Sonar makes use of :
Name three animals which can hear ultrasonic vibrations.
State four practical uses of ultrasonic vibrations.
Ultraviolet radiation has a wavelength of 300Å. If the velocity of the electromagnetic wave is 3 × 108 ms-1. Calculate:
- frequency
- time period.
Is the energy carried by the ultrasound very high or very low?
What does SONAR stand for? Where do we make use of SONAR?
1 hertz is equal to
Ultrasound has frequency of vibration
