Unformatted text preview: en
through a prism. Question: How do you explain the lines in emission
atoms give off energy when heated or electrically excited. light
given off by them is not in a continuous distribution of wave
lengths rather are in the form of lines- called line spectrum. CLIP
when energized electrons moves to a higher energy level, when they go back to lower
energy level- they emit light in the form of light which produces characteristic
emission spectrum. the distance b/w energy level is different for every element.
4 2 05-Sep-13 5 This leads us to the electromagnetic spectrum, the
relationship between wavelength and frequency. As a person in science, I should know .
1. Order of colours in the visible spectrum. ROYGBIV
2. The span of visible wavelengths in nm. 380- 780 nm
___________ has a higher frequency and shorter wavelength than ____________
frequency increases from right to left
wavelength increases from left to right
6 3 05-Sep-13 Let’s talk about the dual nature of light:
synosoidal wave CLIP
1. It can be described in terms of a wave,
i.e., it possesses wavelength,
frequency, and amplitude,...
View Full Document