Q30.For VHF signal broadcasting, _______ km2 of maximum service area will be covered by an antenna tower of height 30 m, if the receiving antenna is placed at ground. Let radius of the earth be 6400 km. (Round off to the Nearest Integer) (Take π as 3. 14 )
What This Question Tests
This question requires calculating the maximum service area covered by an antenna tower using the formula for line-of-sight propagation, involving basic geometry and unit conversions.
Concepts Tested
Formulas Used
d = √(2Rh_T)
Area = πd²
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📋 Question Details
- Chapter
- Communication Systems
- Topic
- Range of antenna
- Year
- 2021
- Shift
- 17 Mar Shift 1
- Q Number
- Q30
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 15: Communication Systems
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