What do you call the result when one object blocks light from another object?

What do you call the result when one object blocks light from another object?

• A. Reflection
• B. Refraction
• C. Eclipse
• D. Shadow

Answer: (D)

Shadow is what you get when an object blocks light from reaching a surface. Light travels in straight lines, so when an opaque object sits between the light source and a surface, the paths of the light are stopped and a dark region forms behind the object. If the light source is small, the shadow appears sharp; with a larger light source, the shadow has a darker center (umbra) and a lighter edge (penumbra). This is different from reflection—light bouncing off a surface—and refraction—light bending as it passes through materials. An eclipse is a specific celestial event where bodies align and cast shadows in space, not simply the result of blocking light.

Shadow is what you get when an object blocks light from reaching a surface. Light travels in straight lines, so when an opaque object sits between the light source and a surface, the paths of the light are stopped and a dark region forms behind the object. If the light source is small, the shadow appears sharp; with a larger light source, the shadow has a darker center (umbra) and a lighter edge (penumbra). This is different from reflection—light bouncing off a surface—and refraction—light bending as it passes through materials. An eclipse is a specific celestial event where bodies align and cast shadows in space, not simply the result of blocking light.