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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.
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.
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संबंधित प्रश्न
The splitting of white light into its constituent colours is called .............
Define the term dispersion of light.
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
A wave has wavelength 50Å of State the speed in vacuum.
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Draw a neat and labelled diagram for dispersion of light.
What is dispersion? Explain in detail.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in Figure 15.2.
Which one of the following is involved for the formation of rainbow in the sky?
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
