Question

Assertion: In the transmission of long distance radio signals, short wave band is used.
Reason: In shorter wavelength, attenuation is very less.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

The sky waves are the radio waves used for very long distance radio communication at medium and high frequencies (i.e., shortwave band). In shorter wavelength, attenuation is very less.