Podcast
Questions and Answers
Which of the following is NOT considered a luminous object?
Which of the following is NOT considered a luminous object?
- The moon (correct)
- An electric bulb
- A burning candle
- The sun
Which object listed is both a source of light and a luminous object?
Which object listed is both a source of light and a luminous object?
- The moon
- An electric bulb
- A torch
- A burning candle (correct)
If you are in a room with only a torch and a mirror, what will be the source of light reflected by the mirror?
If you are in a room with only a torch and a mirror, what will be the source of light reflected by the mirror?
- An electric bulb
- The torch (correct)
- The mirror
- The sun
Which of the following objects is a non-luminous object?
Which of the following objects is a non-luminous object?
Out of the objects listed, which one relies on an external source of light to be visible?
Out of the objects listed, which one relies on an external source of light to be visible?
If a torch is placed in a completely dark room, what will be the immediate source of light in the room?
If a torch is placed in a completely dark room, what will be the immediate source of light in the room?
Study Notes
Luminous and Non-Luminous Objects
- A mirror is NOT considered a luminous object.
- A torch is both a source of light and a luminous object.
- In a room with only a torch and a mirror, the torch is the source of light reflected by the mirror.
- A mirror is a non-luminous object.
- A mirror relies on an external source of light to be visible.
- If a torch is placed in a completely dark room, the torch is the immediate source of light in the room.
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Description
Test your knowledge on objects that emit their own light, such as the sun, stars, burning candles, electric bulbs, and torches. Identify the characteristics and examples of luminous objects in this quiz.
