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प्रश्न
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
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उत्तर
The spectrum is the colour band obtained on a screen when white light passes through a prism. The seven prominent colours obtained in the spectrum of white light, in order are Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
संबंधित प्रश्न
Study the following ray diagram:
In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by
(A) y, p, z
(B) x, q, z
(C) p, y, z
(D) p, z, y
Define the term dispersion of white light.
In the formation of spectrum of white light by a prism:
- which colour is deviated least?
- which colour is deviated most?
The seven colours in the spectrum of sunlight in order, are represented as :
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
A wave has wavelength 50Å of name the wave.
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.
The process of separation of light into its component colours while passing through a medium is called _______.
The splitting of white light in to seven colors is called ______.
