Physics · Antenna Theory
गोलीय निर्देशांक (spherical coordinates) में एक एंटीना का विकिरण पैटर्न (radiation pattern) F(θ) = cos4(θ) द्वारा दिया गया है, जहाँ 0 ≤ θ ≤ π/2 है। एंटीना की दिशात्मकता (directivity) कितनी है?
- 122.02
- 220.42
- 318.02✓
- 416.42
सही उत्तर देखें
18.02
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