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प्रश्न
How can the presence of ultraviolet radiation be detected?
उत्तर
In the presence of ultra-violet radiation, the silver chloride solution becomes dark brown or black.
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संबंधित प्रश्न
In the following diagram, the path of a ray of light passing through a glass prism is shown:
In this diagram the angle of incidence, the angle of emergence and the angle of deviation respectively are (select the correct option):
(A) X, R and T
(B) Y, Q and T
(C) X, Q and P
(D) Y, Q and P
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
The speed of light in air or vacuum is
Define the term dispersion of light.
A wave has wavelength 50Å of State its one use.
Name the scientist who was the first to use a glass prism to obtain the spectrum of sunlight.
Which one of the following is involved for the formation of rainbow in the sky?
During dispersion of white light by prism placed in air, for a particular value of angle of prism,
