Advertisements
Advertisements
प्रश्न
Why are microwaves considered suitable for radar systems used in aircraft navigation?
Advertisements
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
Name the electromagnetic radiations used for (a) water purification, and (b) eye surgery.
Give the range of wavelength of the electromagnetic waves visible to us.
Name the waves produced by the changes in the nucleus of an atom.
Name three properties of ultraviolet radiations which are similar to visible light.
Frequencies of Kα X-rays of different materials are measured. Which one of the graphs in the figure may represent the relation between the frequency v and the atomic number Z ?

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.)
The Kα and Kβ X-rays of molybdenum have wavelengths 0.71 A and 0.63 A respectively. Find the wavelength of Lα X-ray of molybdenum.
(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 Microwaves
State three properties of infrared radiations similar to that of visible light.
Photons of an electromagnetic radiation has an energy 11 keV each. To which region of electromagnetic spectrum does it belong?
