Answer:
hi,
When one stands at a particular place, the point in the sky directly above the head is called Zenith.
Explanation:
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8a2-10ab+15b+10 Explaintion:
Answer:Principle of rectilinear propagation of light
Explanation:Principle of rectilinear propagation of light
Rectilinear propagation of light refers to the propensity of light to travel along a straight line without any interference in its trajectory. ... It is because light travels along a straight line and leaves only the areas where the object interferes.
