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The frequency of visible light falls between that of?
The frequency of visible light falls between ultraviolet and infrared light on the electromagnetic spectrum. It has wavelengths ranging from approximately 400 to 700 nanometers.
The merging of a free electron and a hole is called?
The merging of a free electron and a hole is called recombination. This process occurs in semiconductors when an electron fills a hole in the valence band, resulting in the release of energy in the form of light.
What are the 2 conditions when the direction does not change on refraction?
-- Light approaches the boundary between any two media along the normal direction. -- Light approaches the boundary at any angle and the indexes of refraction of both media are equal.
How many light years is there between Mercury and Venus?
The average distance between Mercury and Venus is approximately 0.5 astronomical units (AU), where 1 AU is approximately 93 million miles. One light year is about 63,241 AU, so the distance between Mercury and Venus is about 0.0000079 light years.
Why is their no delay between turning on a light bulb and seeing the light emits?
Our eyes cant perceive motion faster than 1/10 of a second and light can travel about 10,000m in 1/10seconds. Since a normal room is on an average 7m x 7m, there is no observable delay in between turning on a light and seeing the emitted light.
What is it called when light rays make an image?
Focussing.
What is a nephelometer?
Nephelometry is the quantitation of suspended particles by measurment of scattered light. This can be performed in either water or air. Nephelometers measure suspended particulates through focussing light on them and measuring the light scattering resulting from this.
What element fills lightbulbs?
Tungsten <<>> An inert gas fills the light bulb. The gas is usually argon
What happens when light hits water at an angle?
fills up it
How does a lightswitch work?
A light switch fills(on) or makes (off) a gap in an electrical circuit.
Why do clothes get darker when wet?
The water fills in some of the spaces between the fibers. This water acts just like a fiber optic cable, carrying the light through the material instead of reflecting it back to your eye. Since more of the light goes through the material, less of the light is reflected back and the wet spot looks darker.
What is a fill light in photography?
A light source that "fills in" or lightens shadow areas often created by the main light source without causing the main light source to "blow out" the highlights.
Does light fill more space in a vacuum or in air?
In air, light reflects off gas molecules and hence, "fills more space".
Why do things get darker when there wet?
When the things are wet, the water fills in some of the spaces between the fibers. This water acts just like a fiber optic cable, carrying the light through the material instead of reflecting it back to your eye. Since more of the light goes through the material, less of the light is reflected back and the wet spot looks darker.
What does the vitourous humor do?
The vitreous humor is a gel-like substance that fills the space between the lens and the retina in the eye. It helps maintain the shape of the eye and support the retina by transmitting light to the retina for visual perception.
Shadows are formed because light travels in?
Shadows are formed because when light hits an object, it does not pass through it. Light going around the edge of the object fills in the light void a bit, but it does not make up for the missing light.
What does the electric light bulb do to illuminate a room?
The electric light bulb produces light by passing electricity through a filament, which causes it to glow and emit light. This light fills the room, allowing us to see and navigate in the dark.
