मराठी

Why Are Microwaves Considered Suitable for Radar Systems Used in Aircraft Navigation?

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.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2015-2016 (March) Delhi Set 1

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?


Name the phenomenon which shows the quantum nature of electromagnetic radiation.


Name two electromagnetic waves of frequency smaller than that of violet light. State one use of each.


The electric current in an X-ray tube (from the target to the filament) operating at 40 kV is 10 mA. Assume that on an average, 1% of the total kinetic energy of the electron hitting hte target are converted into X-rays.
(a) What is the total power emitted as X-rays and (b) how much heat is produced in the target every second?


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.


Name the radiation which can be detected by thermopile.


Define the term "Intensity" in the photon picture of electromagnetic radiation. 


Name two sources of ultraviolet radiation.


Answer briefly.

Name the most harmful radiation entering the Earth's atmosphere from outer space.


Given below in the left column are different modes of communication using the kinds of waves given in the right column. 

A.  Optical Fibre
Communication
P. Ultrasound
B. Radar Q. Infrared Light
C. Sonar R. Microwaves
D. Mobile Phones  S. Radio Waves

From the options given below, find the most appropriate match between entries in the left and the right column.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×