The laws of optics also apply to electromagnetic waves invisible to the eye. A satellite TV dish is used to detect radio waves coming from orbiting satellites. Why is a curved reflecting surface (a “dish”) used? The dish is always concave, never convex; why? The actual radio receiver is placed on an arm and suspended in front of the dish. How far in front of the dish should it be placed?
The laws of optics also apply to electromagnetic waves invisible to the eye. A satellite TV dish is used to detect radio waves coming from orbiting satellites. Why is a curved reflecting surface (a “dish”) used? The dish is always concave, never convex; why? The actual radio receiver is placed on an arm and suspended in front of the dish. How far in front of the dish should it be placed?
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The laws of optics also apply to
to the eye. A satellite TV dish is used to detect radio waves coming
from orbiting satellites. Why is a curved reflecting surface (a “dish”)
used? The dish is always concave, never convex; why? The actual radio
receiver is placed on an arm and suspended in front of the dish. How far
in front of the dish should it be placed?
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