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प्रश्न
In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is ______.
पर्याय
Violet
Yellow
Red
Blue
उत्तर
In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is red.
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संबंधित प्रश्न
Draw a ray diagram to show the dispersion of white light.
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
How could you show that the colours of the spectrum combine to give white light?
Define the term dispersion of light.
What conclusion do you draw about the nature of white light in part (b)?
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.
Draw a neat and labelled diagram for dispersion 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?
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
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°:
