Light from a Phosphorescent Source

question 64

Multiple Choice

Light from a phosphorescent source

• A)takes longer to travel from the source to you.
• B)normally has a shorter wavelength than the light that initially produced it.
• C)is cooler than light from a fluorescent source.
• D)all of these
• E)none of these

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Definitions:

Far-Red Light

Far-red light refers to the deep red light near infrared, with wavelengths between 700nm and 800nm, important in plant photomorphogenesis.

Ethylene

A hydrocarbon gas (C2H4) that acts as a plant hormone, regulating a wide range of processes including fruit ripening and leaf senescence.

Jasmonic Acid

A plant hormone that plays a key role in stress responses, growth, and developmental processes, as well as in defense mechanisms against pathogens.

Prostaglandins

A group of lipid compounds that have diverse hormone-like effects in animals, including involvement in inflammation and pain management.