Question

What is light how lite is trable

Answer 1

• When the lamp is first started, it emits a dim red/pink light to warm the sodium metal; within a few minutes as the sodium metal vaporizes, the emission becomes the common bright yellow. ... This high efficiency is partly due to the light emitted being at a wavelength near the peak sensitivity of the human eye.

Answer 2

Answer:

light is electromagnetic radiation within the portion of the electromagnetic spectrum...