Question

which property of light makes a hand cast a shadow when placed in front of a light source?​

Answer 1

Answer:

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Explanation:

One property of light that makes a pencil cast a shadow when it is held in front of it is that light travels in a straight line.

Answer 2

Answer:

light travels in a straight line.

Explanation:

One property of light that makes a pencil cast a shadow when it is held in all of these cases, light is modeled as traveling in straight lines called rays. Light may change direction when it encounters objects (such as a mirror) or in passing from one material to another (such as in passing from air to glass), but it then continues in a straight line or as a ray.

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