What happens when a ray of light strikes the surface of separation between the two media at right angle?
What happens when a ray of light strikes the surface of separation between the two media at right angle? When light enters the boundary of two surfaces at right it passes normally without deviation. This is because here angle of incidence at the boundary of two mediums is zero.
Can light be reflected and refracted at the same time?
Students should be able to look at any scenario and ask themselves if the light ray is traveling through one medium or more than one medium. It is true that reflection and refraction occur at the same time.
What object will not allow light to travel through it in straight lines?
Opaque objects do not allow light to pass through them.
Why is darkness black?
Color paints are mixed together to create darkness, because each color absorbs certain frequencies of light. Theoretically, mixing together the three primary colors, or the three secondary colors, will absorb all visible light and create black.
Is Black an evil color?
Black has a wide range of associations. It can be linked with death, mourning, evil magic, and darkness, but it can also symbolize elegance, wealth, restraint, and power.
What is the color of complete darkness?
TIL in complete darkness we see a specific color called “Eigengrau” that’s a form of dark gray. Eigengrau is perceived as lighter than a black object in normal lighting conditions, because contrast is more important to the visual system than absolute brightness.
Can God and evil coexist?
(16) It is not possible for God and evil to co-exist. The logical problem of evil claims that God’s omnipotence, omniscience and supreme goodness would completely rule out the possibility of evil and that the existence of evil would do the same for the existence of a supreme being.
What is darkness made of?
Most scientists think that dark matter is composed of non-baryonic matter. The lead candidate, WIMPS (weakly interacting massive particles), have ten to a hundred times the mass of a proton, but their weak interactions with “normal” matter make them difficult to detect.
Is dark matter proven?
Because dark matter has not yet been observed directly, if it exists, it must barely interact with ordinary baryonic matter and radiation, except through gravity. Most dark matter is thought to be non-baryonic in nature; it may be composed of some as-yet undiscovered subatomic particles.
Is dark matter evenly distributed?
It is distributed evenly throughout the universe, not only in space but also in time – in other words, its effect is not diluted as the universe expands. The even distribution means that dark energy does not have any local gravitational effects, but rather a global effect on the universe as a whole.