A
B
C
D
Text Solution
Verified by Experts
Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
- Which of the following statements is NOT CORRECT?
Text Solution
|
- The radio waves reflected from.......are called space wave.
Text Solution
|
- The special infrared photograph of the body to see diseased parts is c...
Text Solution
|
- In the diagnosis of superficial tumours and varicose veins which of th...
Text Solution
|
- The sound waves after being converted into electrical waves are not tr...
Text Solution
|
- Choose the correct options. Earth's atmosphere is rechest in
Text Solution
|
- Choose the correct options. A device that converts one form of energ...
Text Solution
|
- Choose the correct options. Ultraviolet rays can NOT pass through ...
Text Solution
|
- Choose the correct options. The radio waves from..... are called spa...
Text Solution
|
- What is modulation?
Text Solution
|
- Name the most harmful radiation entering the earth's atmosphere from t...
Text Solution
|
- Does an ordinary electric lamp emit EM waves?
Text Solution
|
- What are the different types of electro magnetic waves ?
Text Solution
|
- What is meant by noise?
Text Solution
|
- Calculate the wavelength in nm of an X-ray wave of frequency 2 xx 10^1...
Text Solution
|
- In a EM wave the electricfield usallate sinusoidally at a frequency of...
Text Solution
|
- Give reason for the following, satellite are used for long distance TV...
Text Solution
|
- What are radio waves? Give its two uses
Text Solution
|
- What are micro wave? Give its two uses.
Text Solution
|
- Explain why is modulation needed.
Text Solution
|