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प्रश्न
A type of electromagnetic wave has a wavelength of 50 Å. Name the wave and state one use of this type of wave.
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उत्तर
X-rays. These are used for determining fracture of bones, hidden objects in customs at Airports.
संबंधित प्रश्न
Define frequency term in relation to a wave.
State two factors on which the speed of a wave travelling in a medium depends.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
What is a bulb horn ? Name the principle on which a bulb horn works.
What is a soundboard ? Explain the working of a soundboard with the help of a labelled diagram.
Draw a labelled diagram to show the multiple reflections of sound in a part of the stethoscope tube.
A sound wavelength of 0.332 m has a time period of 10−3 s. If the time period is decreased to 10−4 s, calculate the wavelength and frequency of the new wave.
Explain Reflection at curved surfaces.
