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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?
Much shorter wavelength in UV light, hence much greater energy.
True or false visibe light with the shortest wavelength is red light?
No, red is the longest wavelength of visible light, with the lowest frequency and the least energy. Violet light has the shortest wavelenght, with the highest frequency and the most energy (of visible light).
How do the wavelength and frequency of red light compare to the wavelength and frequency of blue light?
very nice answer.
What is the predominant wavelength associated with the emission from atomic sodium?
blue (42 nm)
What color is light of a wavelength 460nm?
blue
Wavelength of sodium chloride?
Sodium chloride has not a wavelenth. The most important wavelength of sodium is 589,29 nm (the mean of D1 and D2 lines).
Can an object vibrate at the wavelength of light?
No object can vibrate at the wavelength of light. wavelength of light depends on the intensity of light and electron movements.
A good example of white light?
White light is another name for polychromatic light. That is light that contains more than one wavelength. For example, sunlight is white light. An example of monochromatic light is a sodium vapour lamp or a LASER.
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?
Much shorter wavelength in UV light, hence much greater energy.
What affects light with short wavelength more than light with long wavelength?
Scattering of light
What determine the color of a light wave?
Its wavelength (or frequency).
What is the formula for converting frequency of light into wavelength?
wavelength = c/frequency of light where c is the speed of light.
HOW DOES wavelength define light?
It defines light because wavelength has a L in it's word, and so does light.
Is a red light a visible light with the shortest wavelength?
No, red light has the longest wavelength within the visible light spectrum.
Is the Visible light with the shortest wavelength a red light?
No, red light has the longest wavelength within the visible light spectrum.
What is the Method of analysis of sodium selenate?
max absorption wavelength of sodium selenate solution and colour
Why does sodium bicarbonate burn yellow?
The most important emission wavelength of sodium is in the yellow region.
