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प्रश्न
Name the colour of white light which is deviated the most on passing through a prism.
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उत्तर
Violet colour will deviate the most on passing through a prism.
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संबंधित प्रश्न
If the speed of light in vacuum is 3 × 108 ms−1, find the speed of light in a medium of absolute refractive index 1.5.
Write a relationship between the angle of incidence and angle of refractions for a given pair of media
How is the refractive index of a medium related to the speed of light in it?
With the help of diagram of the principal section of a prism, indicate its refracting surfaces, refracting edge and base.
A ray of light OP passes through a right angles prism as shown in the adjacent diagram.
(a) State the angles of incidence at the faces AC and BC.
(b) Name the phenomenon which the ray suffers at the face AC.
Observe the figure and write accurate conclusion regarding refraction of light.
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- the angle of refraction and
- the angle of deviation for the ray?
A ray of light passes from air to water. In fig. 39, which of the ray A, B, C and D is the correct refracted ray?
Why is the colour red used as a sign of danger?
A ray of light PQ is incident normally on the hypotenuse of a right-angled prism ABC as shown in the diagram given below:
(i) Copy the diagram and complete the path of the ray PQ till it emerges from the prism.
(ii) What is the value of the angle of deviation of the ray?
(iii) Name an instrument where this action of the prism is used.
