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प्रश्न
What is dispersion? Explain in detail.
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उत्तर
- Splitting white light into its seven constituent colours (wavelength), on passing through a transparent medium is known as dispersion of light.
- Dispersion occurs because the light of different colours present in white light have different wavelength and they travel at different speeds in a medium.
- The refraction of a light ray in a medium depends on its speed.
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संबंधित प्रश्न
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
Out of the following, the colour of light having the maximum wavelength is:
(a) violet
(b) indigo
(c) green
(d) orange
The splitting of white light into its constituent colours is called .............
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
Observe the given figure and answer the following questions.
- Which colour light rays bend most?
- Which colour light rays bend least.
- What is the wavelength of violet light rays?
The splitting of white light in to seven colors is called ______.
The splitting of white light into its component colours is called ____________.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
