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प्रश्न
Give one use of microwaves.
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उत्तर
Microwaves are used for satellite communication.
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संबंधित प्रश्न
Give the range of wavelength of the electromagnetic waves visible to us.
Moseley's Law for characteristic X-ray is √v = a(Z − b). Here,
The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation,
(a) the intensity increases
(b) the minimum wavelength increases
(c) the intensity remains unchanged
(d) the minimum wavelength decreases.
What potential difference should be applied across an X-ray tube to get X-ray of wavelength not less than 0.10 nm? What is the maximum energy of a photon of this X-ray in joule?
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the scientist who discovered Ultraviolet rays
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- Calculate the speed of the wave.
- Name the medium through which it is traveling.
Give one use of electromagnetic radiation in Microwaves.
A radio can tune to any station in the 7.5 mHz to 12 MHz band. What is corresponding wave length band.
What happens to wavelength as the frequency of electromagnetic radiation increases?
