What is the meaning of phosphorescent?
What is the meaning of phosphorescent?
: of or relating to a type of light that glows softly in the dark and that does not produce heat. See the full definition for phosphorescent in the English Language Learners Dictionary. phosphorescent. adjective. phos·pho·res·cent | \ -ᵊnt \
What is a synonym for phosphorescent?
In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for phosphorescent, like: glowing, luminous, radiant, bright, phosphorescence, luminescent, fluoresce and blue-white.
What is phosphorescent material?
Everyday examples of phosphorescent materials are the glow-in-the-dark toys, stickers, paint, wristwatch and clock dials that glow after being charged with a bright light such as in any normal reading or room light.
Whats the definition of fathoms?
1 : a unit of length equal to six feet (1.83 meters) used especially for measuring the depth of water —sometimes used in the singular when qualified by a number five fathom deep.
What does phosphorescence mean in Lord of the Flies?
phosphorescence = dim glowing light (in this case caused by microorganisms that react to movement in the water) The line of phosphorescence bulged about the sand grains and little pebbles; it held them each in a dimple of tension, then suddenly accepted them with an inaudible syllable and moved on.
How do you use phosphorescence in a sentence?
Phosphorescence in a Sentence 🔉
- The walls showed brightly through the darkness in the room due to the phosphorescence in the paint.
- When the mineral shimmered, I believed it was because of the sunlight instead of the phosphorescence emitting the light.
What is the difference between fluorescent and phosphorescent?
Both fluorescence and phosphorescence are based on the ability of a substance to absorb light and emit light of a longer wavelength and therefore lower energy. The main difference is the time in which it takes to do so. So if it disappears immediately, it’s fluorescence. If it lingers, it’s phosphorescence.
Why are fathoms used?
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 m), used especially for measuring the depth of water. Historically, however, it is the most frequently employed maritime measure of depth in the English-speaking world.
How deep is a Fanthom?
6 feet
fathom, old English measure of length, now standardized at 6 feet (1.83 metre), which has long been used as a nautical unit of depth.
What does the dance signify?
Dance can signify joy, celebration, and/or possession by a higher power, be it good or evil. The act of dancing is also linked with rhythm and transforming time into motion.
What does befouled mean in Lord of the Flies?
befoul. To make dirty; soil; also: to speak badly of. illumination.
What is interposed between ground and excited levels in phosphorescence?
In phosphorescence, interposed between the ground level and the excited level is a level of intermediate energy, called a metastable level, or electron trap, because a transition between the metastable level and other levels is forbidden (highly improbable).
Which is the best definition of phosphorescence?
Phosphorescence Definition. Phosphorescence is luminescence that occurs when energy is supplied by electromagnetic radiation, usually ultraviolet light. The energy source kicks an electron of an atom from a lower energy state into an “excited” higher energy state; then the electron releases the energy in the form of light (luminescence)…
How long does phosphorescence last after excitation?
Phosphorescence. Unlike fluorescence, in which the absorbed light is spontaneously emitted about 10 -8 second after excitation, phosphorescence requires additional excitation to produce radiation and may last from about 10 -3 second to days or years, depending on the circumstances.
What is the emission rate of phosphorescence light?
Phosphorescence is emission of light from triplet-excited states, in which the electron in the excited orbital has the same spin orientation as the ground-state electron. Transitions to the ground state are spin-forbidden, and the emission rates are relatively slow (103 to 100 s −1 ).
