Untitled Quiz

Non-luminous objects do not emit their own light and can only be seen when light from a luminous object reflects off them.

We see the Moon because it reflects sunlight into our eyes, even though it does not generate its own light.

Transparent materials allow all light to pass through them, enabling clear visibility; examples include glass and water.

<p>Translucent materials allow only some light to pass through, making visibility unclear; they differ from transparent materials which allow all light to pass.</p> Signup and view all the answers

<p>Opaque materials do not allow any light to pass through them, preventing visibility of objects behind them.</p> Signup and view all the answers

<p>A source of light is an object that gives off light. Examples include the Sun and electric bulbs.</p> Signup and view all the answers

<p>Luminous objects emit their own light, such as the Sun, while non-luminous objects do not emit light and can only be seen when illuminated, like a book.</p> Signup and view all the answers

<p>Light from a source, like a torch or bulb, illuminates objects, making them visible to us.</p> Signup and view all the answers

<p>Natural sources of light occur in nature, such as the Sun, while man-made sources are created by humans, like electric bulbs.</p> Signup and view all the answers

<p>Rectilinear propagation of light means that light travels in straight lines unless it hits an obstacle or medium.</p> Signup and view all the answers