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Question
When a white light ray falls on a prism, the ray at its first surface suffers ______.
Options
No refraction
Only dispersion
Only deviation
Both deviation and dispersion
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Solution
When a white light ray falls on a prism, the ray at its first surface suffers both deviation and dispersion.
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RELATED QUESTIONS
What happens when a ray of ordinary light is passed through a triangular glass prism?
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
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Make two diagrams to explain refraction and dispersion.
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(b) dispersed
(c) focused
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(a) green
(b) violet
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(A) is parallel to the incident ray
(B) perpendicular to the incident ray
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Draw a neat and labelled diagram for dispersion of light.
Observe the given figure and answer the following questions.
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A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
