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प्रश्न
Why are microwaves considered suitable for radar systems used in aircraft navigation?
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उत्तर
Microwaves are considered suitable for radar systems used in aircraft navigation because they have a short wavelength range (10−3 m–0.3 m), which makes them suitable for long-distance communication.
संबंधित प्रश्न
An X-ray beam can be deflected
For a given material, the energy and wavelength of characteristic X-rays satisfy
(a) E(Kα) > E(Kβ) > E(Kγ)
(b) E(Mα) > E(Lα) > E(Kα)
(c) λ(Kα) > λ(Kβ) > λ(Kγ)
(d) λ(Mα) > λ(Lα) > λ(Kα).
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.
Find the cutoff wavelength for the continuous X-rays coming from an X-ray tube operating at 30 kV.
(Use Planck constant h = 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
How will you investigate the existence of the radiation beyond the red and violet extremes of the spectrum?
Answer briefly.
Why high-frequency carrier waves are used for the transmission of audio signals?
The ratio of contributions made by the electric field and magnetic field components to the intensity of an EM wave is ______.
Which set consists of applications of infrared radiation?
Which set lists applications of X-rays?
