What should be height of transmitting an

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Home Questions 3TX677SX32

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

What should be height of transmitting antenna if the T.V. telecast is to cover a radius of 128 km ?

Options:

1560 m

1280 m

1050 m

79 m

Correct Answer:

1280 m

Explanation:

$h=\frac{d^2}{2R}=\frac{128×128}{2×6400}=1.28km$