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प्रश्न
How can the presence of ultraviolet radiation be detected?
How can we detect the presence of ultraviolet radiation?
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उत्तर
In the presence of ultra-violet radiation, the silver chloride solution becomes dark brown or black.
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संबंधित प्रश्न
Draw a ray diagram to show the dispersion of white light.
Which is refracted most by a prism : red light or violet light? Explain why?
Name the process which is involved in the formation of a rainbow.
What are the seven colours seen in a rainbow?
The splitting up of white light into seven colours on passing through a glass prism is called ______.
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
Define the term dispersion of light.
In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is ______.
A student has to trace the path of a ray of light through a glass prism. List four precautions he should observe for better results.
The periscope is an optical device with a polished surface that reflects the light falling on it.
