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प्रश्न
Give reason for the following:
Ultraviolet bulbs have a quartz envelope instead of glass.
उत्तर
Ultraviolet bulbs have a quartz envelope instead of glass as they are not absorbed by quartz, whereas ordinary glass absorbs the ultraviolet light.
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संबंधित प्रश्न
Give two properties of ultraviolet radiations which differ from the visible light.
Give reason for the following:
A quartz prism is required for obtaining the spectrum of ultraviolet light.
The source of ultraviolet light is ______.
Name the radiation which can be detected by a solution of silver chloride.
State one harmful effect of the ultraviolet radiation.
Name the radiations whose wavelength range is from 100 Å to 4000 Å (or 10 nm to 400 nm).
Suggest one way, in each case, by which we can detect the presence of Ultraviolet radiation.
What effect do the ultra-violet radiations have on the human body?
How are ultraviolet radiations detected?
