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All waves will reflect and refract in the right circumstances. The reflection and refraction of light explains how people see images, colour and even optical illusions. Part of Physics...
Jul 4, 2018 · Apart from pigments that selectively absorb light at specific wavelength ranges, three main characteristics determine a flower’s reflectance: the refractive index difference between floral structures, the flower’s interior inhomogeneity and the flower’s thickness.
- Casper J van der Kooi, Adrian G Dyer, Peter G Kevan, Klaus Lunau
- 10.1093/aob/mcy119
- 2019
- Ann Bot. 2019 Jan; 123(2): 263-276.
Light getting in at one end undergoes repeated total internal reflection and is trapped inside the glass, even when the fibre is bent. It emerges at the other end only slightly less bright.
- Specular Reflection
- Concave Mirrors
- Convex Mirrors
- Scattering of Light
The angle at which light hits a reflecting surface is called the angle of incidence, and the angle at which light bounces off a reflecting surface is called the angle of reflection If you want to measure these angles, imagine a perfectly straight line at a right angle to the reflective surface (this imaginary line is called ‘normal’). If you measur...
The inside curve of a spoon is an example of a concave mirror Concave mirrors are used in certain types of astronomical telescopes called reflecting telescopes. The mirrors condense lots of light from faint sources in space onto a much smaller viewing area and allow the viewer to see far away objects and events in space that would be invisible to t...
Convex mirrors curve outwards, like the outside of a balloon. Parallel rays of light strike the mirror and are reflected outwards. If imaginary lines are traced back, they appear to come from a focal point behind the mirror. Convex mirrors are useful for shop security and rear-view mirrors on vehicles because they give a wider field of vision.
Some light is scattered in all directions when it hits very small particles such as gas molecules or much larger particles such as dust or droplets of water. The amount of scattering depends on how big the particle is compared to the wavelength of light that is hitting it. Smaller wavelengths are scattered more. “Why is the sky blue?” is a common q...
May 11, 2016 · The reflected light in the wavelength ranges complementary to the pigment's absorption band determines the flower's hue and saturation. Backscattering of light occurs at the irregularly structured inner petal components (e.g. the vacuoles and air spaces; figure 1 ).
- Casper J. van der Kooi, J. Theo M. Elzenga, Marten Staal, Doekele G. Stavenga
- 2016
Apr 26, 2015 · The observed reflected light was composed of “exterior” reflected light (ERL), which is observed as sparkling white spots on the surface of the epidermal cells, and “interior” reflected light (IRL), which is reflected from inside the petal and determines the base colour of the petals.
People also ask
How is light reflected in a flower?
What determines a flower's reflectance?
Does a flat flower surface cause specular reflection?
What determines a flower's color and saturation?
Do flowers have a reflectance spectrum?
Why do flowers color?
Part of the incident light (I) is reflected by the surface (R surface ) or by the interior (R interior ), part of the light is transmitted (T) through the flower, and light of a specific...
