wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The attenuation of surface waves with increase in frequency.

A
increases
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
decreases
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
remains zero
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A increases
When a ground wave propagates over the surface of the earth, eddy currents are induced in the surface of the earth which causes attenuation of these waves. Moreover, as they travel over the earth's surface they bend along the curvature of the earth which results in energy losses. Thus, ground wave propagation is restricted to small distances. The maximum range of coverage depends upon the transmitted power and frequency because
the high-frequency waves suffer more absorption of energy in earth's atmosphere. Hence it cannot be used for high-frequency TV and frequency modulated (FM) broadcasts.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
PM and Demodulation
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon