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Why is it when sodium was irradiated for 2 seconds with infrared light no electrons were rejected but when it was irradiated with ultraviolet light thousands of electrons were emitted?
Wiki User
∙ 13y ago
Much shorter wavelength in UV light, hence much greater energy.
Wiki User
∙ 13y ago
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Does fluorescent material glow under infrared light?
No fluorescent material glows under ultraviolet not infrared
Do ultraviolet spectroscopy and infrared spectroscopy involve electromagnetic radiation in their operation?
Yes. All light is a form of electromagnetic radiation, so this answer applies to all light spectroscopy.
How do hot objects use light?
RGFRGFGGGHGN
How is the path length of an infrared cell measured?
in wavelength
What kind of radiation causes molecules to vibrate?
Infrared Radiation.
Sodium is irradiated for 2 seconds with infrared light and no electrons are ejected The same metal is irradiated for 2 seconds with ultraviolet light and thousands of electrons are emitted?
Its because the electrons need a minimum amount of energy to come out of the material. This energy is called the threshold energy.
Which has the higher frequencies ultraviolet or infrared?
Ultraviolet
What is similar about infrared and ultraviolet?
Both infrared and ultraviolet are kinds of electromagnetic radiation, as is the visible light.
Higher frequencies ultraviolet waves or infrared waves?
Ultraviolet is higher frequency, then visible light, then infrared.
Where is visible light along the EM spectrum?
Right between infrared and ultraviolet. It has higher frequencies than infrared; lower frequencies than ultraviolet.
What is the opposite of ultraviolet?
infrared
What has greater energy between ultraviolet and infrared?
ultraviolet has more energy.
The frequency of visible light falls between that of?
Ultraviolet and the infrared.
Which is the wavelenght that is nicknamed heat wave infrared or ultraviolet?
Heat is infrared radiation.
Are Infrared and Ultraviolet Light not visible?
Yes, they are not.
What are the invisible light?
Infrared and ultraviolet light
Which passes through glass without a problem infrared or ultraviolet radiation?
infrared radiation
