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प्रश्न
State the cause of dispersion of white light
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उत्तर
When a beam of white light enters a prism, it gets refracted at the point and splits into its seven constituent colors, viz. violet, indigo, blue, green, yellow, orange, and red. The acronym for the seven constituent colors of white light is VIBGYOR. This splitting of the light rays occurs because of the different angles of bending for each color and this different angles of bending occur because the different component of light faces different refractive indices when passing through the glass prism.
When a narrow beam of sunlight is allowed to fall on one of the rectangular surfaces of the glass prism, we obtain a colored spectrum with red and violet color at its extreme.
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संबंधित प्रश्न
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
Draw a ray diagram to show the dispersion of white light.
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.
The seven colours in the spectrum of sunlight in order, are represented as :
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
Write the range of wavelength of the visible spectrum.
The sunlight can be split into its constituent colors using ______.
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
State the colour which bends:
- The most.
- The least while passing through a glass prism.
