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

Give a reason for the following:

Long-distance radio broadcasts use short-wave bands. Why?


When a Coolidge tube is operated for some time it becomes hot. Where does the heat come from?


50% of the X-rays coming from a Coolidge tube are able to pass through a 0.1 mm thick aluminium foil. If the potential difference between the target and the filament is increased, the fraction of the X-rays passing through the same foil will be


Gamma rays D C Visible light B A

The above table shows different parts of the electromagnetic spectrum.
(a)    Identify the parts of the spectrum marked as A, B, C and D.
(b)    Which of the radiations A or B has the higher frequency?
(c)    State two properties which are common to all parts of the electromagnetic spectrum.
(d)    Name one source of each of the radiation of electromagnetic spectrum.
(e)    Name one detector for each of the radiation.
(f)    Name one use of each of the radiation.


What are ultraviolet radiations? How are they detected? State two properties and one use of ultraviolet radiations.

Name the radiations used for the detection of fracture in bones.


What is the wavelength of the wave whose frequency is 1012 Hz? Name the electromagnetic wave.


A car is moving towards a high cliff. The car driver sounds a horn of frequency f. The reflected sound heard by the driver has a frequency 2f. If v be the velocity of sound, then the velocity of the car, in the same velocity units, will be:


If λv, λx and λm Am represents the wavelength of visible light, x-ray and microwaves respectively, then ______.


How are X-rays commonly produced?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×