Light source intensity is how bright a light is, like how loud your voice is when you shout versus when you whisper.
Imagine you have two flashlights: one is tiny and dim, like the flashlight you use to find your way in the dark bedroom. The other is big and super bright, like the flashlight you use to shine on your face during a silly photo. The light source intensity is like how much "power" that flashlight has, the bigger and brighter it is, the more light it sends out.
What Makes Light Brighter?
Think of a lamp in your room. If it's a small nightlight, it gives off just enough light to read a book. But if it’s a big, bright floor lamp, it fills up the whole room with light. The intensity is like how much "energy" that lamp uses, more energy means more brightness.
So, when we talk about light source intensity, we're talking about how strong or weak the light is, just like how strong or weak your voice can be! Light source intensity is how bright a light is, like how loud your voice is when you shout versus when you whisper.
Imagine you have two flashlights: one is tiny and dim, like the flashlight you use to find your way in the dark bedroom. The other is big and super bright, like the flashlight you use to shine on your face during a silly photo. The light source intensity is like how much "power" that flashlight has, the bigger and brighter it is, the more light it sends out.
Examples
- A flashlight used to read a book at night
- The brightness of a street lamp on a dark road
- Comparing the glow of a candle and a lamp
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See also
- What is The source of the light?
- What Causes the ‘Glow’ of a Neon Sign?
- What are three tiny lights?
- How Do Holograms Actually Work?
- What is Interact with light?